fix(player): 评论面板自适应高度并只顶起输入框

lib/pages/player/widgets/comment_tile.dart

@@ -46,7 +46,7 @@ class CommentTile extends StatelessWidget {
         : comment.nickname;
     return Padding(
       key: Key('comment-item-${comment.id}'),
-      padding: const EdgeInsets.only(top: 12, bottom: 14),
+      padding: const EdgeInsets.only(top: 10, bottom: 12),
       child: Row(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
@@ -125,7 +125,7 @@ class CommentTile extends StatelessWidget {
                   ),
                 if (comment.createdAt != null || !isReply)
                   Padding(
-                    padding: const EdgeInsets.only(top: 6),
+                    padding: const EdgeInsets.only(top: 4),
                     child: _metadata(context, l10n),
                   ),
               ],