Add TypeScript to app-frontend (#2364)

* Add TypeScript to app-frontend

Co-authored-by: Evan Song <52982404+ferothefox@users.noreply.github.com>

* Switch app-frontend to ESLint 9 & Nuxt config

* Fix ESLint issues after config change in app-frontend

---------

Co-authored-by: Evan Song <52982404+ferothefox@users.noreply.github.com>

apps/app-frontend/tsconfig.node.json

@@ -0,0 +1,17 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "skipLibCheck": true,
+
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "isolatedModules": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    "strict": true
+  },
+  "include": ["vite.config.ts"]
+}