Resolve "Merge request buttons spacing incorrect"

app/assets/javascripts/notes/components/noteable_discussion.vue

@@ -379,7 +379,7 @@ Please check your network connection and try again.`;
                         role="group">
                         <button
                           type="button"
-                          class="btn btn-default mr-2"
+                          class="btn btn-default"
                           @click="resolveHandler()"
                         >
                           <i

changelogs/unreleased/48494-fix-merge-request-buttons-spacing.yml

+---
+title: Fix incorrect spacing between buttons when commenting on a MR.
+merge_request: 22135
+author:
+type: fixed