Incorrect type import of SupabasePersistenceOptions in realtime monaco documentation

# Improve documentation ## Link https://supabase.com/ui/docs/react/realtime-monaco ## Describe the problem In the code sample provided, under the "Folder Structure" section, there is an error with the import of the `SupabasePersistenceOptions` type when developing locally. This `SupabasePersistenceOptions` is imported in `components/realtime-monaco.tsx`. It is currently imported like `import { SupabasePersistenceOptions } from '@supabase-labs/y-supabase'` The above import would give the error below: ``` 'SupabasePersistenceOptions' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled. ``` ## Describe the improvement I was able to resolve the issue by changing the import to: `import type { SupabasePersistenceOptions } from "@supabase-labs/y-supabase";` ## Additional context Also when executing `npx shadcn@latest add @supabase/realtime-monaco-react`. The package `@supabase-labs/y-supabase` is not installed, so it is not found during development. I haven't investiaged the fix for this issue on the Supabase side.