Flatten migrations, kvs lib, fix tabs

src-web/hooks/useWorkspaces.ts

@@ -6,6 +6,7 @@ import { useQuery } from '@tanstack/react-query';
 export function useWorkspaces() {
   return (
     useQuery(['workspaces'], async () => {
+      console.log('INVOKING WORKSPACES');
       const workspaces = (await invoke('workspaces')) as Workspace[];
       return workspaces.map(convertDates);
     }).data ?? []