message: Fix and extend `safer-destructive-actions` on Discussions
diff: /* Move "close issue" and "cancel" buttons on authoring comments to the left */
  /* ...in issue comment form */
  -#partial-new-comment-form-actions > .d-flex {
  +#issuecomment-new #partial-new-comment-form-actions > .d-flex {
  justify-content: space-between !important;
  }
  /* ...in comment edit form */
  div.previewable-edit .previewable-comment-form .form-actions {
  margin-left: 10px;
  - float: none;
  + float: none !important;
  }
  .previewable-edit .previewable-comment-form .form-actions .btn.js-comment-cancel-button {
  - float: left;
  + float: left !important;
  }
  /* ...in inline comment form */
  