Expand duplicate checking to resume watching and downloads as well

[Luna712]

Describe your suggested feature

I think it could be beneficial to warn if you are going to start watching something you've already started, and probably even more beneficial to warn before you can download something you've already downloaded as well.

Other details

No response

Acknowledgements

• [X] My suggestion is NOT about adding a new provider
• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.