⏪ Remove the two column in the explore

lib/screens/posts/post_detail.dart

@@ -57,6 +57,7 @@ class PostDetailScreen extends HookConsumerWidget {
     final isWide = isWideScreen(context);
 
     return AppScaffold(
+      noBackground: false,
       appBar: AppBar(title: const Text('Post')),
       body: postState.when(
         data: (post) {

lib/screens/posts/post_search.dart

@@ -109,6 +109,7 @@ class _PostSearchScreenState extends ConsumerState<PostSearchScreen> {
   @override
   Widget build(BuildContext context) {
     return AppScaffold(
+      noBackground: false,
       appBar: AppBar(
         title: TextField(
           controller: _searchController,

lib/screens/posts/pub_profile.dart

@@ -124,6 +124,7 @@ class PublisherProfileScreen extends HookConsumerWidget {
     return publisher.when(
       data:
           (data) => AppScaffold(
+            noBackground: false,
             body: CustomScrollView(
               slivers: [
                 SliverAppBar(