fix: align extension search with compact toolbar controls

ui/flutter/lib/features/extensions/presentation/pages/extensions_page.dart

@@ -633,6 +633,7 @@ class _Toolbar extends StatelessWidget {
     final search = AppTextField(
       key: const ValueKey('extension-search-input'),
       controller: searchController,
+      padding: MediaQuery.sizeOf(context).width >= Breakpoints.mobile ? AppDesignTokens.compactTextFieldPadding : null,
       placeholder: Text(context.l10n.searchExtensions, style: TextStyle(color: palette.searchHint)),
       features: [shad.InputFeature.leading(Icon(Icons.search_rounded, size: 16, color: palette.textMuted))],
       onSubmitted: onSearch,

ui/flutter/lib/shared/theme/app_design_tokens.dart

@@ -22,6 +22,7 @@ class AppDesignTokens {
   static const double settingsNumberControlWidth = 168;
   static const double settingsItemMinLabelWidth = 160;
   static const EdgeInsets textFieldPadding = EdgeInsets.symmetric(horizontal: 12, vertical: 11);
+  static const EdgeInsets compactTextFieldPadding = EdgeInsets.symmetric(horizontal: 12, vertical: 6);
   static const EdgeInsets numberTextFieldPadding = EdgeInsets.symmetric(horizontal: 12, vertical: 10);
 
   static const EdgeInsets pagePadding = EdgeInsets.symmetric(horizontal: 32);

ui/flutter/test/widget_test.dart

@@ -449,7 +449,7 @@ void main() {
         child: shad.ShadcnApp(
           theme: AppTheme.light(),
           materialTheme: AppTheme.materialLight(),
-          home: const ExtensionsPage(),
+          home: const AppComponentThemes(child: ExtensionsPage()),
         ),
       ),
     );
@@ -469,6 +469,7 @@ void main() {
     final cardRect = tester.getRect(find.byKey(const ValueKey('extension-card-extension-0')));
     final rightmostCardRect = tester.getRect(find.byKey(const ValueKey('extension-card-extension-2')));
     final appMarkRect = tester.getRect(find.byKey(const ValueKey('primary-rail-app-mark')));
+    expect(searchRect.height, closeTo(sortRect.height, 0.01));
     expect(searchRect.width, 240);
     expect(searchRect.width, lessThan(cardRect.width));
     expect(sortRect.left - searchRect.right, closeTo(10, 0.01));
@@ -501,6 +502,7 @@ void main() {
     expect(find.byType(PrimaryRail), findsOneWidget);
     final compactSearchRect = tester.getRect(find.byKey(const ValueKey('extension-search-field-container')));
     expect(compactSearchRect.width, lessThan(240));
+    expect(compactSearchRect.height, closeTo(sortRect.height, 0.01));
     expect(
       tester.getRect(find.byKey(const ValueKey('extension-sort-control'))).center.dy,
       closeTo(compactSearchRect.center.dy, 0.01),
@@ -745,7 +747,7 @@ void main() {
         child: shad.ShadcnApp(
           theme: AppTheme.light(),
           materialTheme: AppTheme.materialLight(),
-          home: const ExtensionsPage(),
+          home: const AppComponentThemes(child: ExtensionsPage()),
         ),
       ),
     );