fix(flutter): 选集条箭头靠右排列

lib/pages/player/widgets/player_overlay.dart

@@ -259,7 +259,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
                   ),
                   child: Row(
                     children: [
-                      Flexible(
+                      Expanded(
                         child: Text(
                           '${data.l10n.episodes} · '
                           '${data.l10n.allEpisodesBadge(data.totalEpisodes)} · '
@@ -274,7 +274,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
                           ),
                         ),
                       ),
-                      const SizedBox(width: 3),
+                      const SizedBox(width: 8),
                       const Icon(
                         Icons.keyboard_arrow_up_rounded,
                         color: AppColors.onPrimary,