Manual Expire Timer & Warning

App version:
2.4.3

Problem you may be having, or feature you want:
I forget to download episodes of public radio station podcasts before they expire.
AntennaPod keeps the feed items and they will error when you try to download them because the station deleted them from the cdn.
They are required by an official agreement with the state and private stations to do so depending on the content.

Suggested solution:
Mark a feed with an expiration date of x days and if you get close to that time, remind the user that there are episodes that aren’t downloaded/marked played yet and offer to save them.