Indicate "Request Not Found"

[thymon13]

Description

When a user's request cannot be found, the only option available is to delete the request. From the user's perspective, this can be confusing as the request simply disappears, often leading them to believe it's a bug or error in the system. Currently, there is no clear explanation for why the request is removed.

Desired Behavior

It would be helpful to show a "Request Not Found" message before deleting the request. This would indicate to the user that the request is unavailable and will be removed from Jellyseerr as well as Radarr/Sonarr. This would prevent confusion and clearly communicate the status of the request.

Additional Context

No response

Code of Conduct

• [x] I agree to follow Jellyseerr's Code of Conduct