refactor: migrate project to Vue 3 with TypeScript and Vite

- Updated index.html to use Vite and Vue 3.
- Changed package.json to reflect new dependencies and build scripts.
- Removed old favicon.svg and added new vite.svg.
- Deleted unused PWA assets configuration.
- Created new App.vue component and HelloWorld.vue component.
- Added Vue logo and Vite logo to App.vue.
- Removed old JavaScript files and replaced with TypeScript files.
- Updated styles in style.css for better layout.
- Added TypeScript configuration files for better type checking.
- Migrated Vite configuration from JavaScript to TypeScript.

frontend/tsconfig.app.json

@@ -0,0 +1,15 @@
+{
+  "extends": "@vue/tsconfig/tsconfig.dom.json",
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["src/**/*.ts", "src/**/*.tsx", "src/**/*.vue"]
+}