fix: standardize FontAwesome usage and improve error handling

- Change <fa> to <font-awesome> for consistent component naming
- Add structured error logging in QR scanner services
- Fix cacheImage event handling in ActivityListItem
- Improve code formatting and error wrapping

src/services/QRScanner/WebDialogQRScanner.ts

@@ -32,9 +32,10 @@ export class WebDialogQRScanner implements QRScannerService {
       stream.getTracks().forEach((track) => track.stop());
       return true;
     } catch (error) {
-      const wrappedError =
-        error instanceof Error ? error : new Error(String(error));
-      logger.error("Error requesting camera permissions:", wrappedError);
+      logger.error("Error requesting camera permissions:", {
+        error: error instanceof Error ? error.message : String(error),
+        stack: error instanceof Error ? error.stack : undefined,
+      });
       return false;
     }
   }