fix(flutter): feed rail 底部对齐并复用播放页更多

test/home/home_preview_layout_test.dart

@@ -125,6 +125,7 @@ void main() {
               onDownload: () {},
               onClear: () {},
               onSearch: () {},
+              onMore: () {},
             ),
           ),
         ),
@@ -215,6 +216,7 @@ void main() {
               onDownload: () {},
               onClear: () {},
               onSearch: () {},
+              onMore: () {},
               onScrubStart: () {},
               onSeek: (value) => seeked = value,
             ),
@@ -356,6 +358,7 @@ void main() {
               onDownload: () {},
               onClear: () {},
               onSearch: () {},
+              onMore: () {},
             ),
           ),
         ),