diff --git a/package-lock.json b/package-lock.json
index 948bd34..529a764 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,14 +7,10 @@
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-      },
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         "@rollup/plugin-node-resolve": "^15.2.3",
+        "@rollup/plugin-terser": "^0.4.4",
         "esm-env": "^1.0.0",
         "highcharts": "^11.4.6",
         "rollup": "^2.79.2",
@@ -22,11 +18,13 @@
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         "rollup-plugin-livereload": "^2.0.5",
         "rollup-plugin-svelte": "^7.2.0",
-        "rollup-plugin-terser": "^7.0.0",
+        "sirv-cli": "^3.0.0",
         "svelte": "^4.2.19",
         "svelte-check": "^4.1.1",
+        "svelte-persisted-store": "^0.12.0",
         "svelte-preprocess": "^6.0.3",
-        "svelte-spa-router": "^4.0.1"
+        "svelte-spa-router": "^4.0.1",
+        "typescript": "^5.7.3"
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@@ -37,6 +35,7 @@
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+      "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
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@@ -46,35 +45,11 @@
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-      "license": "MIT",
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-        "js-tokens": "^4.0.0",
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-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.25.9.tgz",
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-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=6.9.0"
-      }
-    },
     "node_modules/@jridgewell/gen-mapping": {
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+      "dev": true,
       "license": "MIT",
       "dependencies": {
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@@ -89,6 +64,7 @@
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+      "dev": true,
       "license": "MIT",
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@@ -98,6 +74,7 @@
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+      "dev": true,
       "license": "MIT",
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@@ -118,12 +95,14 @@
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+      "dev": true,
       "license": "MIT"
     },
     "node_modules/@jridgewell/trace-mapping": {
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       "resolved": "https://registry.npmjs.org/@jridgewell/trace-mapping/-/trace-mapping-0.3.25.tgz",
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+      "dev": true,
       "license": "MIT",
       "dependencies": {
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@@ -172,6 +151,7 @@
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+      "dev": true,
       "license": "MIT"
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@@ -226,6 +206,39 @@
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+      "version": "0.4.4",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-terser/-/plugin-terser-0.4.4.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "serialize-javascript": "^6.0.1",
+        "smob": "^1.0.0",
+        "terser": "^5.17.4"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^2.0.0||^3.0.0||^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "rollup": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@rollup/plugin-terser/node_modules/serialize-javascript": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.2.tgz",
+      "integrity": "sha512-Saa1xPByTTq2gdeFZYLLo+RFE35NHZkAbqZeWNd3BpzppeVisAqpDjcp8dyf6uIvEqJRd46jemmyA4iFIeVk8g==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
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+      }
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@@ -253,6 +266,7 @@
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+      "dev": true,
       "license": "MIT"
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@@ -304,6 +318,7 @@
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+      "dev": true,
       "license": "MIT",
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@@ -343,6 +358,7 @@
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+      "dev": true,
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@@ -362,6 +378,7 @@
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+      "dev": true,
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+      "dev": true,
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+      "dev": true,
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+      "dev": true,
       "license": "MIT",
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@@ -728,16 +750,6 @@
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-      "dev": true,
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@@ -876,28 +888,6 @@
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@@ -971,14 +965,8 @@
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       "dev": true,
-      "license": "MIT"
+      "license": "CC0-1.0"
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@@ -1367,23 +1360,6 @@
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+      "dev": true,
       "license": "MIT",
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@@ -1445,25 +1422,17 @@
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+      "dev": true,
       "license": "MIT",
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       "resolved": "https://registry.npmjs.org/sirv/-/sirv-3.0.1.tgz",
       "integrity": "sha512-FoqMu0NCGBLCcAkS1qA+XJIQTR6/JHfQXl+uGteNCQ76T91DMUjPa9xfmeqMY3z80nLSg9yQmNjK0Px6RWsH/A==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@polka/url": "^1.0.0-next.24",
@@ -1478,6 +1447,7 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/sirv-cli/-/sirv-cli-3.0.1.tgz",
       "integrity": "sha512-ICXaF2u6IQhLZ0EXF6nqUF4YODfSQSt+mGykt4qqO5rY+oIiwdg7B8w2PVDBJlQulaS2a3J8666CUoDoAuCGvg==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "console-clear": "^1.1.0",
@@ -1506,6 +1476,13 @@
         "node": ">=8"
       }
     },
+    "node_modules/smob": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/smob/-/smob-1.5.0.tgz",
+      "integrity": "sha512-g6T+p7QO8npa+/hNx9ohv1E5pVCmWrVCUzUXJyLdMmftX6ER0oiWY/w9knEonLpnOp6b6FenKnMfR8gqwWdwig==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/source-map": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -1520,6 +1497,7 @@
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
       "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==",
+      "dev": true,
       "license": "BSD-3-Clause",
       "engines": {
         "node": ">=0.10.0"
@@ -1536,19 +1514,6 @@
         "source-map": "^0.6.0"
       }
     },
-    "node_modules/supports-color": {
-      "version": "7.2.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "has-flag": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/supports-preserve-symlinks-flag": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
@@ -1566,6 +1531,7 @@
       "version": "4.2.19",
       "resolved": "https://registry.npmjs.org/svelte/-/svelte-4.2.19.tgz",
       "integrity": "sha512-IY1rnGr6izd10B0A8LqsBfmlT5OILVuZ7XsI0vdGPEvuonFV7NYEUK4dAkm9Zg2q0Um92kYjTpS1CAP3Nh/KWw==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@ampproject/remapping": "^2.2.1",
@@ -1645,6 +1611,7 @@
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/svelte-persisted-store/-/svelte-persisted-store-0.12.0.tgz",
       "integrity": "sha512-BdBQr2SGSJ+rDWH8/aEV5GthBJDapVP0GP3fuUCA7TjYG5ctcB+O9Mj9ZC0+Jo1oJMfZUd1y9H68NFRR5MyIJA==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.14"
@@ -1726,6 +1693,7 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-3.0.3.tgz",
       "integrity": "sha512-7RUKfXgSMMkzt6ZuXmqapOurLGPPfgj6l9uRZ7lRGolvk0y2yocc35LdcxKC5PQZdn2DMqioAQ2NoWcrTKmm6g==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@types/estree": "^1.0.0"
@@ -1735,6 +1703,7 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/is-reference/-/is-reference-3.0.3.tgz",
       "integrity": "sha512-ixkJoqQvAP88E6wLydLGGqCJsrFUnqoH6HnaczB8XmDH1oaWU+xxdptvikTgaEhtZ53Ky6YXiBuUI2WXLMCwjw==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@types/estree": "^1.0.6"
@@ -1763,6 +1732,7 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/tinydate/-/tinydate-1.3.0.tgz",
       "integrity": "sha512-7cR8rLy2QhYHpsBDBVYnnWXm8uRTr38RoZakFSW7Bs7PzfMPNZthuMLkwqZv7MTu8lhQ91cOFYS5a7iFj2oR3w==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=4"
@@ -1785,6 +1755,7 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/totalist/-/totalist-3.0.1.tgz",
       "integrity": "sha512-sf4i37nQ2LBx4m3wB74y+ubopq6W/dIzXg0FDGjsYnZHVa1Da8FH853wlL2gtUhg+xJXjfk3kUZS3BRoQeoQBQ==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=6"
@@ -1794,6 +1765,7 @@
       "version": "5.7.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.3.tgz",
       "integrity": "sha512-84MVSjMEHP+FQRPy3pX9sTVV/INIex71s9TL2Gm5FG/WG1SqXeKyZ0k7/blY/4FdOzI12CBy1vGc4og/eus0fw==",
+      "dev": true,
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
diff --git a/package.json b/package.json
index a6f2650..f5e3b88 100644
--- a/package.json
+++ b/package.json
@@ -19,13 +19,11 @@
     "rollup-plugin-css-only": "^4.5.2",
     "rollup-plugin-livereload": "^2.0.5",
     "rollup-plugin-svelte": "^7.2.0",
-    "rollup-plugin-terser": "^7.0.0",
     "svelte": "^4.2.19",
     "svelte-check": "^4.1.1",
     "svelte-preprocess": "^6.0.3",
-    "svelte-spa-router": "^4.0.1"
-  },
-  "dependencies": {
+    "svelte-spa-router": "^4.0.1",
+    "@rollup/plugin-terser": "^0.4.4",
     "sirv-cli": "^3.0.0",
     "svelte-persisted-store": "^0.12.0",
     "typescript": "^5.7.3"
diff --git a/rollup.config.js b/rollup.config.js
index 2f629ab..4f5c1ab 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -2,7 +2,7 @@ import svelte from 'rollup-plugin-svelte';
 import commonjs from '@rollup/plugin-commonjs';
 import resolve from '@rollup/plugin-node-resolve';
 import livereload from 'rollup-plugin-livereload';
-import { terser } from 'rollup-plugin-terser';
+import terser from '@rollup/plugin-terser';
 import sveltePreprocess from 'svelte-preprocess';
 import css from 'rollup-plugin-css-only';
 import copy from 'rollup-plugin-copy';