Can mark a comment as the answer, some layout changes

frontend/src/pages/MyPosts.tsx

@@ -208,11 +208,11 @@ const MyPosts: React.FC = () => {
                       {post.status === 'open' && (
                         <button
                           className="btn btn-sm btn-outline-success"
-                          onClick={() => handleStatusChange(post.id, 'solved')}
+                          onClick={() => handleStatusChange(post.id, 'answered')}
                           disabled={actionLoading === post.id}
                         >
                           <i className="bi bi-check-circle me-1"></i>
-                          Mark Solved
+                          Mark Answered
                         </button>
                       )}