chore: add export/import

src/shared/lib/helpers/index.ts

@@ -32,7 +32,10 @@ export {
     type LineData,
 } from './createCharacterComparison/createCharacterComparison.svelte';
 
-export { createPersistentStore } from './createPersistentStore/createPersistentStore.svelte';
+export {
+    createPersistentStore,
+    type PersistentStore,
+} from './createPersistentStore/createPersistentStore.svelte';
 
 export {
     createResponsiveManager,