Add expiry for app passwords

[ekevu123]

I would like to see custom expiry dates (optionally) for the app passwords I set in my profile. I am using them sometimes for debugging, and it can happen that I even give one of it to AI, e.g. "use this to test to authenticate" when coding.

If I could set an expiry date a few hours from now, I wouldn't have to worry about cleanup.

[girish]

Good idea. I wanted exactly this a few days back but was lazy to implement. Got the impetus to implement this now. Will be part of 9.1