UI Improvements and fixes metadata fetch error

android/app/build.gradle

@@ -52,6 +52,8 @@ android {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
             signingConfig = signingConfigs.debug
+                    minifyEnabled true
+        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
 }

lib/components/add_link.dart

@@ -8,10 +8,10 @@ class AddLinkDialog extends StatefulWidget {
   final Function(String) onAddLink;
 
   const AddLinkDialog({
-    Key? key,
+    super.key,
     required this.linkController,
     required this.onAddLink,
-  }) : super(key: key);
+  });
 
   @override
   State<AddLinkDialog> createState() => _AddLinkDialogState();

lib/main.dart

@@ -252,7 +252,7 @@ class MyApp extends StatelessWidget {
           }
 
           // If user is logged in, show HomeScreen, otherwise show AuthScreen
-          return snapshot.hasData ? HomeScreen() : AuthScreen();
+          return snapshot.hasData ? const HomeScreen() : const AuthScreen();
         },
       ),
     );