message: change link previews to vertical flow
diff: @@ -19,6 +19,8 @@ limitations under the License.
  margin-right: 15px;
  margin-bottom: 15px;
  display: flex;
  + flex-direction: column;
  + max-width: 360px
  border-left: 4px solid $preview-widget-bar-color;
  color: $preview-widget-fg-color;
  }
  