EPIC: App Hang Improvements

[philipphofmann]

Description

The implementation of AppHangs has a few drawbacks, see #2715. The main problem is that non-fully blocking app hangs have random stacktraces, which aren't actionable. Ideally, we plan on linking such app hangs to profiles, but we haven't decided how to achieve this in the product. Until we decide, we can give the users an option to ignore non-fully blocking app hangs. Furthermore, we plan on adding support for the app hang rate, but for that we need to capture fatal app hangs first, which we currently don't do.

Still, we can do some improvements for AppHangs

Tasks

Beta Give feedback

1. Add the option to ignore non fully blocking app hangs #3492
   5 of 5
   Platform: Cocoa +1
   
2. Measure how long an app hang lasts #2216
   Platform: Cocoa product +2
3. Report Fatal App Hangs #4260
   Platform: Cocoa +1
4. Support for App Hang Rate #3319
   Platform: Cocoa Sync: Jira Type: Feature Request product +4