TW-2112: Fix bug Remove profile picture / avatar doesn't work

lib/domain/app_state/settings/update_profile_success.dart

@@ -8,14 +8,22 @@ class UpdateProfileInitial extends Success {
 class UpdateProfileSuccess extends Success {
   final Uri? avatar;
   final String? displayName;
-  final bool isDeleteAvatar;
 
   const UpdateProfileSuccess({
     this.avatar,
     this.displayName,
-    this.isDeleteAvatar = false,
   });
 
   @override
-  List<Object?> get props => [avatar, displayName, isDeleteAvatar];
+  List<Object?> get props => [avatar, displayName];
+}
+
+class DeleteProfileSuccess extends Success {
+  final String? displayName;
+
+  const DeleteProfileSuccess({
+    this.displayName,
+  });
+  @override
+  List<Object?> get props => [displayName];
 }

lib/domain/usecase/settings/update_profile_interactor.dart

@@ -30,11 +30,18 @@ class UpdateProfileInteractor {
           displayName,
         );
       }
+      if (isDeleteAvatar) {
+        yield Right(
+          DeleteProfileSuccess(
+            displayName: displayName,
+          ),
+        );
+        return;
+      }
       yield Right(
         UpdateProfileSuccess(
           displayName: displayName,
           avatar: avatarUrl,
-          isDeleteAvatar: isDeleteAvatar,
         ),
       );
     } catch (e) {

lib/pages/settings_dashboard/settings_profile/settings_profile.dart

@@ -455,12 +455,25 @@ class SettingsProfileController extends State<SettingsProfile>
             avatarUrl: success.avatar ?? currentProfile.value?.avatarUrl,
           );
           _sendAccountDataEvent(profile: newProfile);
-          if (!success.isDeleteAvatar) {
-            isEditedProfileNotifier.toggle();
-          }
+          isEditedProfileNotifier.toggle();
           _getCurrentProfile(client, isUpdated: true);
           TwakeDialog.hideLoadingDialog(context);
         }
+
+        if (success is DeleteProfileSuccess) {
+          final newProfile = Profile(
+            userId: client.userID!,
+            displayName: success.displayName ?? displayName,
+            avatarUrl: null,
+          );
+          _sendAccountDataEvent(profile: newProfile);
+          isEditedProfileNotifier.toggle();
+          _getCurrentProfile(client, isUpdated: true);
+          TwakeDialog.hideLoadingDialog(context);
+          pickAvatarUIState.value = Right<Failure, Success>(
+            DeleteAvatarUIStateSuccess(),
+          );
+        }
       },
     );
   }

lib/presentation/model/pick_avatar_state.dart

@@ -38,3 +38,10 @@ class GetAvatarBigSizeUIStateFailure extends Failure {
   @override
   List<Object?> get props => [];
 }
+
+class DeleteAvatarUIStateSuccess extends PickAvatarState {
+  DeleteAvatarUIStateSuccess();
+
+  @override
+  List<Object?> get props => [];
+}