message: FormLayoutGroup: update styles
  (for better Removable button positions)
diff: +.FormLayoutGroup--horizontal {
  + padding: 12px 0;
  +}
  +
  .FormLayoutGroup--horizontal .FormLayoutGroup__children {
  display: flex;
  flex-direction: row;
  - padding: 12px 0;
  }
  .FormLayoutGroup--horizontal .FormLayoutGroup__children > .FormItem {
  padding-right: 12px;
  }
  +.FormLayoutGroup--ios.FormLayoutGroup--horizontal .Removable__remove-marker {
  + align-self: flex-end;
  +}
  +
  /**
  * ANDROID & VKCOM
  */
  .FormLayoutGroup--android .Removable__remove,
  .FormLayoutGroup--vkcom .Removable__remove {
  + align-self: flex-end;
  margin-right: -16px;
  }
  