Add TypeScript type definitions for app components and layout

- Created type definitions for `auth`, `layout`, and `page` components to ensure type safety and consistency.
- Implemented checks for entry validity and prop types using utility types.
- Added a `package.json` file to specify module type for TypeScript compatibility.

app/frontend/.next/build-manifest.json

@@ -0,0 +1,19 @@
+{
+  "polyfillFiles": [
+    "static/chunks/polyfills.js"
+  ],
+  "devFiles": [],
+  "ampDevFiles": [],
+  "lowPriorityFiles": [
+    "static/development/_buildManifest.js",
+    "static/development/_ssgManifest.js"
+  ],
+  "rootMainFiles": [
+    "static/chunks/webpack.js",
+    "static/chunks/main-app.js"
+  ],
+  "pages": {
+    "/_app": []
+  },
+  "ampFirstPages": []
+}