[Feature]: Show stashed windows when moving focus between windows of the same app

[globalhuman]

Description

When cycling through windows of the same app with cmd+` it would be great to be able to cycle into the stashed windows too.

Ideally I would like the app to behave similarly to how cmd+h behaves but instead of the whole application group being hid just the single window (which stash accomplishes). With cmd+h the windows are retrieved when cycling through with cmd+tab. That way the stashed windows can be retrieved more easily by cycling through the windows.

Current behaviour:

1. AppAWindowA(open) AppAWindowB(open)
2. AppAWindowA(open) AppAWindowB(stashed)
3. Cycle through AppA windows with cmd+` only AppAWindowA will be shown.

Proposed behaviour:

1. AppAWindowA(open) AppAWindowB(open)
2. AppAWindowA(open) AppAWindowB(stashed)
3. Cycle through AppA windows with cmd+`. AppAWindowB will be unstashed momentarily and if put in focus will be unstashed.