merge: 对齐二级筛选图标中心线

lib/pages/home/widgets/home_grid_header.dart

@@ -98,7 +98,7 @@ class HomeGridHeader extends StatelessWidget {
         AppDimens.homeSearchPrimaryGap,
       ),
       child: Row(
-        crossAxisAlignment: CrossAxisAlignment.start,
+        crossAxisAlignment: CrossAxisAlignment.center,
         mainAxisAlignment: MainAxisAlignment.start,
         children: [
           Expanded(
@@ -318,7 +318,7 @@ class HomeGridHeader extends StatelessWidget {
               key: const Key('home-secondary-tags'),
               scrollDirection: Axis.horizontal,
               child: Row(
-                crossAxisAlignment: CrossAxisAlignment.start,
+                crossAxisAlignment: CrossAxisAlignment.center,
                 mainAxisAlignment: MainAxisAlignment.start,
                 children: [
                   for (final tag in tags) ...[
@@ -332,8 +332,9 @@ class HomeGridHeader extends StatelessWidget {
           const SizedBox(width: AppDimens.homeSecondaryFilterGap),
           Tooltip(
             message: l10n.filter,
-            child: SizedBox.square(
+            child: SizedBox(
-              dimension: AppDimens.tapTarget,
+              width: AppDimens.tapTarget,
+              height: AppDimens.homeSecondaryFilterVisualSize,
               child: Material(
                 color: AppColors.transparent,
                 child: InkWell(
@@ -341,6 +342,7 @@ class HomeGridHeader extends StatelessWidget {
                   onTap: callbacks.onOpenFilter,
                   child: Center(
                     child: SizedBox.square(
+                      key: const Key('home-secondary-filter-visual'),
                       dimension: AppDimens.homeSecondaryFilterVisualSize,
                       child: const Center(
                         child: CustomPaint(

test/home/home_preview_layout_test.dart

@@ -96,7 +96,15 @@ void main() {
     expect(find.byKey(const Key('home-grid-filter')), findsOneWidget);
     expect(
       tester.getSize(find.byKey(const Key('home-grid-filter'))),
-      const Size.square(AppDimens.tapTarget),
+      const Size(AppDimens.tapTarget, AppDimens.homeSecondaryFilterVisualSize),
+    );
+    expect(
+      tester.getSize(find.byKey(const Key('home-secondary-filter-visual'))),
+      const Size.square(AppDimens.homeSecondaryFilterVisualSize),
+    );
+    expect(
+      tester.getCenter(find.byKey(const Key('home-grid-filter'))).dy,
+      closeTo(tester.getCenter(find.byKey(const Key('home-tag-hot'))).dy, 0.1),
     );
     final filterIcon = tester.widget<CustomPaint>(
       find.byKey(const Key('home-secondary-filter-icon')),