message: fix comment thread modal
diff: @@ -107,10 +107,11 @@ function onEditorBlur() {
  </div>
  </AppCommentDisabledCheck>
  - <template v-if="user && !hasError && parent" #footer>
  + <template #footer>
  <AppMessageThreadAdd
  - hide-message-split
  + v-if="user && !hasError && parent"
  :class="{ '-thread-editor-focus': isEditorFocused }"
  + hide-message-split
  >
  <FormComment
  :model="model"
  