Your task is to build a simple dashboard for managing feature flags. Feature flags are used to turn features on or off in an application without deploying new code.

You will be provided with a mock API to fetch and update these flags.

Core Features:

1. Display Flags:

   • On initial load, fetch a list of feature flags from the mock API.
   • Display a loading indicator while the data is being fetched.
   • Display an appropriate error message if the API call fails.
   • Render each flag's name, description, and its current status.

2. Filtering & Searching:

   • Add controls to filter the list of flags by their status (ENABLED, DISABLED). A set of radio buttons or a dropdown would be suitable.
   • Include a text input to search for flags by their name.
   • The search functionality should be debounced to avoid excessive filtering on every keystroke.

3. Toggle Status (Optimistic Update):

   • Next to each flag, render a toggle switch to enable or disable it.
   • When a user clicks the toggle, the UI should immediately reflect the new state (optimistic update).
   • In the background, make an API call to persist the change.
   • If the API call succeeds, the new state is confirmed.
   • If the API call fails, the toggle should revert to its original state, and an error message should be briefly displayed to the user.