fix(show-diff-body): issue body class name

Author: h13i32maru

src/Electron/Component/WebViewComponentInjection/show-diff-body.ts

@@ -44,6 +44,6 @@
   diffEl.appendChild(headerEl);
   diffEl.appendChild(diffContainerEl);
 
-  const refEl = document.querySelector('.timeline-comment-wrapper .comment .edit-comment-hide');
-  document.querySelector('.timeline-comment-wrapper .comment').insertBefore(diffEl, refEl);
+  const refEl = document.querySelector('.timeline-comment-group .comment .edit-comment-hide');
+  document.querySelector('.timeline-comment-group .comment').insertBefore(diffEl, refEl);
 })();