Implemented editable album title (#130)

* Replace static title text with a text edit field
* Implement endpoint for updating album info
* Implement changing title
* Only the owner can change the title

mobile/lib/modules/sharing/providers/album_viewer.provider.dart

@@ -0,0 +1,49 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/modules/sharing/models/album_viewer_page_state.model.dart';
+import 'package:immich_mobile/modules/sharing/providers/shared_album.provider.dart';
+import 'package:immich_mobile/modules/sharing/services/shared_album.service.dart';
+
+class AlbumViewerNotifier extends StateNotifier<AlbumViewerPageState> {
+  AlbumViewerNotifier(this.ref) : super(AlbumViewerPageState(editTitleText: "", isEditAlbum: false));
+
+  final Ref ref;
+
+  void enableEditAlbum() {
+    state = state.copyWith(isEditAlbum: true);
+  }
+
+  void disableEditAlbum() {
+    state = state.copyWith(isEditAlbum: false);
+  }
+
+  void setEditTitleText(String newTitle) {
+    state = state.copyWith(editTitleText: newTitle);
+  }
+
+  void remoteEditTitleText() {
+    state = state.copyWith(editTitleText: "");
+  }
+
+  void resetState() {
+    state = state.copyWith(editTitleText: "", isEditAlbum: false);
+  }
+
+  Future<bool> changeAlbumTitle(String albumId, String ownerId, String newAlbumTitle) async {
+    SharedAlbumService service = SharedAlbumService();
+
+    bool isSuccess = await service.changeTitleAlbum(albumId, ownerId, newAlbumTitle);
+
+    if (isSuccess) {
+      state = state.copyWith(editTitleText: "", isEditAlbum: false);
+      ref.read(sharedAlbumProvider.notifier).getAllSharedAlbums();
+
+      return true;
+    }
+
+    return false;
+  }
+}
+
+final albumViewerProvider = StateNotifierProvider<AlbumViewerNotifier, AlbumViewerPageState>((ref) {
+  return AlbumViewerNotifier(ref);
+});