message: Fix very small images in `reaction-avatars`
diff: @@ -39,6 +39,6 @@ button.reaction-summary-item { /* `button` excludes the "Add reaction" icon */
  /* This image will start at height:0 and will expand once loaded, covering the gray placeholder */
  .reaction-summary-item a img { /* `a` required for #3237 */
  - max-width: 100%;
  + width: 100%;
  background-color: var(--color-bg-info, #fff);
  }
  