feat(admin): 转码设置页新增立即补齐转码按钮

src/locales/en.ts

@@ -657,6 +657,11 @@ export default {
     saveFailed: 'Failed to save transcode settings',
     loadFailed: 'Failed to load transcode settings',
     noPermission: 'This account cannot manage transcode settings',
+    backfill: 'Backfill transcodes',
+    backfillTip: 'Scan episodes missing renditions or thumbnails and enqueue them for transcoding',
+    backfillDone: 'Enqueued {count} episodes into the transcode queue',
+    backfillEmpty: 'No episodes need transcoding',
+    backfillFailed: 'Failed to run transcode backfill',
     enabled: 'Enable transcode profile',
     enabledDescription:
       'Marks whether this transcode profile is enabled; the quality ladder is still validated when saved.',