feat: enable stricter typescript compiler options

frontend/app/icons.config.mjs

@@ -12,8 +12,9 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-
-/** @type {import('./scripts/icon-config').IconConfig} */
+/**
+ * @type {import('./scripts/icon-config').IconConfig}
+ */
 const config = {
   inputPath: 'node_modules/material-symbols/material-symbols-rounded.woff2',
   outputPath: 'src/assets/icons.min.woff2',

frontend/app/tsconfig.json

@@ -6,8 +6,7 @@
     "outDir": "./dist/out-tsc",
     "declaration": false,
     "isolatedModules": false,
-    "checkJs": false,
-    "allowJs": false,
+    "allowSyntheticDefaultImports": true,
     "strictPropertyInitialization": false,
     "downlevelIteration": true,
     "importHelpers": true,
@@ -20,3 +19,6 @@
   },
   "exclude": ["**/*.spec.ts"]
 }
+    
+  
+