feat(frontend): modernize Angular app

ui/tsconfig.app.json

@@ -3,13 +3,14 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "./out-tsc/app",
-    "types": []
+    "types": [
+      "@angular/localize"
+    ]
   },
-  "files": [
-    "src/main.ts",
-    "src/polyfills.ts"
-  ],
   "include": [
-    "src/**/*.d.ts"
+    "src/**/*.ts"
+  ],
+    "exclude": [
+    "src/**/*.spec.ts"
   ]
 }