refactor: move image config to metadata table (#28228)

* migrate image config

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/lib/domain/models/store.model.dart

@@ -20,12 +20,8 @@ enum StoreKey<T> {
   sslClientCertData<String>._(15),
   sslClientPasswd<String>._(16),
   uploadErrorNotificationGracePeriod<int>._(106),
-  thumbnailCacheSize<int>._(110),
-  imageCacheSize<int>._(111),
-  albumThumbnailCacheSize<int>._(112),
   selectedAlbumSortOrder<int>._(113),
   advancedTroubleshooting<bool>._(114),
-  preferRemoteImage<bool>._(116),
   selfSignedCert<bool>._(120),
   selectedAlbumSortReverse<bool>._(123),
   enableHapticFeedback<bool>._(126),
@@ -57,6 +53,8 @@ enum StoreKey<T> {
   syncMigrationStatus<String>._(1013),
 
   // Legacy keys that have been migrated to the new metadata store
+  legacyPreferRemoteImage<bool>._(116),
+  legacyLoadOriginal<bool>._(101),
   legacyPrimaryColor<String>._(128),
   legacyDynamicTheme<bool>._(129),
   legacyColorfulInterface<bool>._(130),