Invalidate swr when clearing cache

src/admin/ClearCacheButton.tsx

@@ -2,13 +2,17 @@
 
 import SubmitButtonWithStatus from '@/components/SubmitButtonWithStatus';
 import { syncCacheAction } from '@/photo/actions';
+import { useAppState } from '@/state/AppState';
 import { BiTrash } from 'react-icons/bi';
 
 export default function ClearCacheButton() {
+  const { invalidateSwr } = useAppState();
+
   return (
     <form action={syncCacheAction}>
       <SubmitButtonWithStatus
         icon={<BiTrash />}
+        onFormSubmit={invalidateSwr}
       >
         Clear Cache
       </SubmitButtonWithStatus>