add babel to build

Author: andre-dietrich

.babelrc

@@ -0,0 +1,10 @@
+{
+    "presets": [
+      [
+        "@babel/preset-env",
+        {
+          "targets": ">0.5%, last 2 versions, Firefox ESR, not dead"
+        }
+      ]
+    ]
+  }

package.json

@@ -6,7 +6,7 @@
   "author": "zeon.studio",
   "scripts": {
     "dev": "hugo server",
-    "build": "hugo --gc --minify --templateMetrics --templateMetricsHints --forceSyncStatic",
+    "build": "hugo --gc --minify --templateMetrics --templateMetricsHints --forceSyncStatic && npm run babel",
     "preview": "hugo server --disableFastRender --navigateToChanged --templateMetrics --templateMetricsHints --watch --forceSyncStatic -e production --minify",
     "dev:example": "cd exampleSite && hugo server",
     "build:example": "cd exampleSite && hugo --gc --minify --templateMetrics --templateMetricsHints --forceSyncStatic",
@@ -16,15 +16,25 @@
     "project-setup": "node ./scripts/projectSetup.js",
     "theme-setup": "node ./scripts/themeSetup.js",
     "update-theme": "node ./scripts/themeUpdate.js",
-    "format": "prettier -w ."
+    "format": "prettier -w .",
+    "babel": "npx babel public --out-dir public --extensions \".js,.mjs,.cjs\" --ignore public/service-worker.js"
   },
   "devDependencies": {
+    "@babel/cli": "^7.27.2",
+    "@babel/core": "^7.27.4",
+    "@babel/preset-env": "^7.27.2",
     "@tailwindcss/cli": "^4.0.14",
     "@tailwindcss/forms": "^0.5.10",
     "@tailwindcss/typography": "^0.5.16",
     "prettier": "^3.5.3",
     "prettier-plugin-go-template": "0.0.15",
     "prettier-plugin-tailwindcss": "^0.6.11",
     "tailwindcss": "^4.0.14"
-  }
+  },
+  "browserslist": [
+    ">0.5%",
+    "last 2 versions",
+    "Firefox ESR",
+    "not dead"
+  ]
 }