fix: delete tab on delete of published post

src/renderer/App.tsx

@@ -126,6 +126,7 @@ const App: React.FC = () => {
     unsubscribers.push(
       window.electronAPI?.on('post:deleted', (id: unknown) => {
         removePost(id as string);
+        useAppStore.getState().closeTab(id as string);
       }) || (() => {})
     );
 

src/renderer/components/Editor/Editor.tsx

@@ -994,6 +994,7 @@ const PostEditor: React.FC<PostEditorProps> = ({ postId }) => {
             // Clear pending ref to prevent auto-save on unmount from resurrecting the post
             pendingChangesRef.current = null;
             useAppStore.getState().removePost(postId);
+            useAppStore.getState().closeTab(postId);
             useAppStore.getState().setSelectedPost(null);
             showToast.success('Post deleted');
           } catch (error) {