Fix the issue of the PR page buttons exceeding the display area. (#29189

)

web_src/css/repo.css

@@ -942,7 +942,7 @@
   margin-bottom: -0.25rem;
 }
 
-@media (max-width: 767.98px) {
+@media (max-width: 991.98px) {
   .repository.view.issue .comment-list .comment .merge-section .item-section {
     align-items: flex-start;
     flex-direction: column;