Fix: The interface is broken when modifying code comments under mobile devices (#30125)

**Fix**: [#30123](#30123)

**Before**

![image](https://github.com/go-gitea/gitea/assets/37935145/2a186399-85b0-480a-b2f9-f4feffd9a8e2)


**After**

![image](https://github.com/go-gitea/gitea/assets/37935145/ce1ce3e4-3bbb-4a4b-b0e7-e7943a0774f2)

Author: HEREYUA

web_src/css/review.css

@@ -96,9 +96,6 @@
 }
 
 @media (max-width: 767.98px) {
-  .comment-code-cloud .comments .comment {
-    display: flex;
-  }
   .comment-code-cloud .comments .comment .comment-header-right.actions .ui.basic.label {
     display: none;
   }