refactor(empty-state): 空状态支持内容居中

test/empty_state/empty_state_test.dart

@@ -69,7 +69,7 @@ void main() {
     semantics.dispose();
   });
 
-  testWidgets('should_render_compact_dimensions_for_embedded_empty_state', (
+  testWidgets('should_keep_standard_icon_size_in_compact_empty_state', (
     tester,
   ) async {
     await _pump(
@@ -83,7 +83,7 @@ void main() {
 
     expect(
       tester.getSize(find.byKey(const Key('empty-state-icon'))),
-      const Size(44, 44),
+      const Size(72, 72),
     );
     expect(find.byType(DecoratedBox), findsNothing);
     expect(
@@ -97,7 +97,7 @@ void main() {
       tester
           .widget<Padding>(find.byKey(const Key('empty-state-padding')))
           .padding,
-      const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
+      const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
     );
     expect(find.byKey(const Key('empty-state-action')), findsNothing);
   });