Upgrade to svelte 5 and bump all other dependencies

.gitignore

@@ -1,5 +1,7 @@
 /.vscode
 /dist
+/build
 /node_modules
 .idea
 CLAUDE.md
+.svelte-kit

eslint.config.js

@@ -1,27 +1,30 @@
 import js from "@eslint/js";
 import svelte from "eslint-plugin-svelte";
 import globals from "globals";
+import svelteConfig from "./svelte.config.js";
 import ts from "typescript-eslint";
 
 export default ts.config(
   js.configs.recommended,
   ...ts.configs.recommended,
-  ...svelte.configs["flat/recommended"],
+  ...svelte.configs.recommended,
   {
     languageOptions: {
       globals: {
         ...globals.browser,
         ...globals.node,
-        NodeJS: true,
       },
     },
   },
   {
-    files: ["**/*.svelte"],
+    files: ["**/*.svelte", "**/*.svelte.ts", "**/*.svelte.js"],
 
     languageOptions: {
       parserOptions: {
+        projectService: true,
+        extraFileExtensions: [".svelte"], // Add support for additional file extensions, such as .svelte
         parser: ts.parser,
+        svelteConfig,
       },
     },
   },
@@ -32,5 +35,5 @@ export default ts.config(
     rules: {
       "@typescript-eslint/no-explicit-any": "off",
     },
-  }
+  },
 );