Support profiles sort

Support windows country flags display

Optimize proxies page and profiles page columns

.github/workflows/build.yml

@@ -87,7 +87,7 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: '3.x'
+          flutter-version-file: pubspec.yaml
           channel: 'stable'
           cache: true