refactor: migrate viewer config to metadata table (#28396)

* refactor: app metadata

* refactor to per row store

* cleanup

* more test

* review changes

* more refactor

* refactor

* migrate primary color

* migrate dynamic theme

* migrate colorfulInterface

* cleanup providers

* migrate cleanup

* migrate mapconfig

* remove unused keys

* migrate timeline config

* migrate image config

* migrate viewer config

---------

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

mobile/lib/infrastructure/repositories/metadata.repository.dart

@@ -133,6 +133,12 @@ extension<T extends Object> on MetadataDomain<T> {
             storageIndicator: repo._read(.timelineStorageIndicator),
           ),
           image: .new(preferRemote: repo._read(.imagePreferRemote), loadOriginal: repo._read(.imageLoadOriginal)),
+          viewer: .new(
+            loopVideo: repo._read(.viewerLoopVideo),
+            loadOriginalVideo: repo._read(.viewerLoadOriginalVideo),
+            autoPlayVideo: repo._read(.viewerAutoPlayVideo),
+            tapToNavigate: repo._read(.viewerTapToNavigate),
+          ),
         );
       case .systemConfig:
         repo._systemConfig = .new(logLevel: repo._read(.logLevel));