Solving the issue of UI disruption when the review is deleted without refreshing (#29951)

**After deleting the review and refreshing, the display is normal.
However, Without refreshing, the interface will be broken**


https://github.com/go-gitea/gitea/assets/37935145/f5cb19a6-eb26-47b0-b8ee-15b575bbe1ac

**after**


https://github.com/go-gitea/gitea/assets/37935145/aa65922c-2ebf-4fce-ad91-35661f70329a

Author: HEREYUA

web_src/js/features/repo-issue.js

@@ -162,7 +162,8 @@ export function initRepoIssueCommentDelete() {
         const response = await POST($this.data('url'));
         if (!response.ok) throw new Error('Failed to delete comment');
         const $conversationHolder = $this.closest('.conversation-holder');
-
+        const $parentTimelineItem = $this.closest('.timeline-item');
+        const $parentTimelineGroup = $this.closest('.timeline-item-group');
         // Check if this was a pending comment.
         if ($conversationHolder.find('.pending-label').length) {
           const $counter = $('#review-box .review-comments-counter');
@@ -185,6 +186,11 @@ export function initRepoIssueCommentDelete() {
           }
           $conversationHolder.remove();
         }
+        // Check if there is no review content, move the time avatar upward to avoid overlapping the content below.
+        if (!$parentTimelineGroup.find('.timeline-item.comment').length && !$parentTimelineItem.find('.conversation-holder').length) {
+          const $timelineAvatar = $parentTimelineGroup.find('.timeline-avatar');
+          $timelineAvatar.removeClass('timeline-avatar-offset');
+        }
       } catch (error) {
         console.error(error);
       }