Update accessibility for reply placeholder

app/assets/javascripts/design_management/components/design_notes/design_discussion.vue

@@ -257,7 +257,7 @@ export default {
         <reply-placeholder
           v-if="!isFormVisible"
           class="qa-discussion-reply"
-          :placeholder-text="__('Reply...')"
+          :placeholder-text="__('Reply…')"
           @focus="showForm"
         />
         <apollo-mutation

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

@@ -50,7 +50,7 @@ export default {
   <div class="discussion-with-resolve-btn clearfix">
     <reply-placeholder
       data-qa-selector="discussion_reply_tab"
-      :placeholder-text="s__('MergeRequests|Reply...')"
+      :placeholder-text="__('Reply…')"
       @focus="$emit('showReplyForm')"
     />
 

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

@@ -15,7 +15,8 @@ export default {
     rows="1"
     class="reply-placeholder-text-field js-vue-discussion-reply"
     :placeholder="placeholderText"
-    :title="s__('MergeRequests|Add a reply')"
+    :title="__('Reply to comment')"
+    :aria-label="__('Reply to comment')"
     @focus="$emit('focus')"
   ></textarea>
 </template>

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

@@ -345,7 +345,7 @@ export default {
               class="note-textarea js-gfm-input js-note-text js-autosize markdown-area js-vue-issue-note-form"
               data-qa-selector="reply_field"
               dir="auto"
-              :aria-label="__('Description')"
+              :aria-label="__('Reply to comment')"
               :placeholder="__('Write a comment or drag your files here…')"
               @keydown.meta.enter="handleKeySubmit()"
               @keydown.ctrl.enter="handleKeySubmit()"