New sidebar and folder view (#263)

src-web/lib/atoms/atomWithKVStorage.ts

@@ -2,7 +2,7 @@ import { atom } from 'jotai';
 import { getKeyValue, setKeyValue } from '../keyValueStore';
 
 export function atomWithKVStorage<T extends object | boolean | number | string | null>(
-  key: string,
+  key: string | string[],
   fallback: T,
   namespace = 'global',
 ) {