Fix reply box on diffs

Fixed the border for reply box

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

@@ -16,9 +16,14 @@ export default {
   },
   render(h, { props, children }) {
     if (props.isDiffDiscussion) {
-      return h('li', { class: 'discussion-collapsible bordered-box clearfix' }, [
-        h('ul', { class: 'notes' }, children),
-      ]);
+      return h(
+        'li',
+        {
+          class:
+            'discussion-collapsible gl-border-solid gl-border-gray-100 gl-border-1 gl-rounded-base gl-overflow-hidden clearfix',
+        },
+        [h('ul', { class: 'notes' }, children)],
+      );
     }
 
     return children;

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

@@ -265,7 +265,7 @@ export default {
                 <div
                   v-else-if="showReplies"
                   :class="{ 'is-replying': isReplying }"
-                  class="discussion-reply-holder clearfix"
+                  class="discussion-reply-holder gl-border-t-0! clearfix"
                 >
                   <user-avatar-link
                     v-if="!isReplying && userCanReply"

app/assets/stylesheets/pages/notes.scss

@@ -159,7 +159,6 @@ $note-form-margin-left: 72px;
   > li {
     display: block;
     position: relative;
-    border-bottom: 0;
 
     &.being-posted {
       pointer-events: none;

changelogs/unreleased/285507-fix-reply-box-border.yml

+---
+title: Fix reply box border on diffs
+merge_request: 52084
+author:
+type: fixed