Monitor existing episodes

Sonarr version (exact version):
Mono version (if Sonarr is not running on Windows): 6.0.13
Debug logs:
Description of issue:
The current description of the ‘MONITOR EXISITING EPISODES’ shown in the UI is incorrect. It does monitor existing episodes but it does not monitor future episodes as the description details.

The wiki does reflect the behaviour exhibited.

The monitor exisiting episodes option should also monitor future episodes.