feat: 调整播放历史为单列列表

test/following/following_page_test.dart

@@ -208,11 +208,46 @@ void main() {
 
     expect(find.text('Server title'), findsOneWidget);
     expect(find.text('Episode 3 / 8 total'), findsOneWidget);
+    expect(find.text('Watched 25%'), findsOneWidget);
+    expect(
+      find.byKey(const Key('following-history-card-the-signal-demo')),
+      findsOneWidget,
+    );
+    expect(
+      find.byKey(const Key('following-history-continue-the-signal-demo')),
+      findsOneWidget,
+    );
     expect(
       find.byKey(const Key('following-progress-the-signal-demo')),
       findsOneWidget,
     );
+    final cover = tester.widget<SizedBox>(
+      find.byKey(const Key('following-history-cover-the-signal-demo')),
+    );
+    expect(cover.width, AppDimens.followingHistoryCoverWidth);
+    expect(cover.height, AppDimens.followingHistoryCoverHeight);
+    final historyGrid = tester.widget<SliverGrid>(
+      find.descendant(
+        of: find.byKey(const Key('following-history-grid')),
+        matching: find.byType(SliverGrid),
+      ),
+    );
+    final historyDelegate =
+        historyGrid.gridDelegate as SliverGridDelegateWithFixedCrossAxisCount;
+    expect(historyDelegate.crossAxisCount, 1);
+    expect(historyDelegate.mainAxisSpacing, AppDimens.followingHistoryRowGap);
     expect(catalog.detailFetches, 0);
+
+    await tester.tap(find.byKey(const Key('following-edit')));
+    await tester.pumpAndSettle();
+    expect(
+      find.byKey(const Key('following-history-remove-the-signal-demo')),
+      findsOneWidget,
+    );
+    expect(
+      find.byKey(const Key('following-history-continue-the-signal-demo')),
+      findsNothing,
+    );
   });
 
   testWidgets('should_switch_following_pages_horizontally', (tester) async {