Add admin restart flow and loading indicators

src/ui/index.ts

@@ -1,5 +1,7 @@
 export { ActionMenu } from './ActionMenu';
 export type { ActionMenuItem } from './ActionMenu';
+export { BusyRing } from './BusyRing';
+export type { BusyRingProps } from './BusyRing';
 export { Button } from './Button';
 export type { ButtonProps, ButtonSize, ButtonVariant } from './Button';
 export { DetailsPopover } from './DetailsPopover';