feat: initialize Svelte frontend with Vite and TypeScript

- Added package.json for project configuration and dependencies.
- Included images for the application (teh-jokur.png and vite.svg).
- Created main application structure with App.svelte, CounterCard.svelte, and AddCounterCard.svelte components.
- Implemented functionality for adding, editing, incrementing, and decrementing counters.
- Added clickOutside utility for handling outside clicks in editing mode.
- Configured TypeScript with appropriate tsconfig files for app and node.
- Set up Vite configuration for building the application.
- Added global styles in app.css for consistent UI design.

frontend/tsconfig.node.json

@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2023",
+    "lib": [ "ES2023" ],
+    "module": "ESNext",
+    "types": [ "node" ],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    // "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    // "noEmit": true,
+    "composite": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": [ "vite.config.ts" ]
+}