show empty title when there is none

app/lib/features/geckoview/domain/providers/tab_state.dart

@@ -49,9 +49,7 @@ class TabStates extends _$TabStates {
       parentId: contentState.parentId,
       contextId: contentState.contextId,
       url: Uri.parse(contentState.url),
-      title: (contentState.title.isNotEmpty)
-          ? contentState.title
-          : current.title,
+      title: contentState.title,
       progress: contentState.progress,
       isPrivate: contentState.isPrivate,
       isFullScreen: contentState.isFullScreen,

app/lib/presentation/controllers/website_title.dart

@@ -77,7 +77,7 @@ class CompletePageInfo extends _$CompletePageInfo {
 
     ref.listen(
       fireImmediately: true,
-      tabStateProvider(cached.id).select((value) => value?.title.whenNotEmpty),
+      tabStateProvider(cached.id).select((value) => value?.title),
       (previous, next) {
         if (next != null) {
           final current = stateOrNull?.value ?? cached;