message: fix(Group): box-shadow after content
diff: .Group--card > .Group__inner {
  background: var(--background_content);
  border-radius: 8px;
  + position: relative;
  +}
  +
  +.Group--card > .Group__inner::after {
  + content: "";
  + left: 0;
  + top: 0;
  + width: 100%;
  + height: 100%;
  + position: absolute;
  + border-radius: inherit;
  box-shadow: inset 0 0 0 var(--thin-border) var(--input_border);
  }
  