feat(flutter): 新增剧场筛选页

lib/l10n/app_en.arb

@@ -29,6 +29,17 @@
   "romance": "Romance",
   "actionGenre": "Action",
   "filter": "Filter",
+  "filterGroupCategory": "All genres",
+  "filterGroupTheme": "All themes",
+  "filterGroupLanguage": "All languages",
+  "filterGroupSort": "All recommendations",
+  "sortNewest": "Newest",
+  "sortHottest": "Hottest",
+  "expandFilters": "Expand",
+  "collapseFilters": "Collapse",
+  "filterEmpty": "No dramas match these filters",
+  "hotBadge": "Hit",
+  "filterAll": "All",
   "seriesMeta": "Series · {episodes} eps | {viewers} watching",
   "@seriesMeta": {
     "placeholders": {