message: [Banner] Fix overlay_primary buttons in actions
diff: margin-bottom: -6px;
  }
  -.Banner__actions > .Button--lvl-primary {
  +.Banner__actions > .Button {
  margin-top: 12px;
  margin-right: 16px;
  margin-bottom: 6px;
  margin: 4px 16px 2px -16px;
  }
  -.Banner__actions > .Button--lvl-overlay {
  - margin-top: 12px;
  - margin-bottom: 6px;
  -}
  -
  .Banner__actions > .Button--lvl-tertiary:first-child {
  margin-top: 4px;
  }
  -.Banner__actions > .Button--lvl-primary + .Button--lvl-primary {
  +.Banner__actions > .Button:not(.Button--lvl-tertiary) + .Button:not(.Button--lvl-tertiary) {
  margin-top: 0;
  }
  -.Banner__actions > .Button--lvl-primary + .Button--lvl-tertiary {
  +.Banner__actions > .Button:not(.Button--lvl-tertiary) + .Button--lvl-tertiary {
  margin-top: 2px;
  margin-left: -16px;
  }
  