Make "org-agenda-quit" work more reliably with org-idle-agenda

[ghost]

Thank you for your work! Org-idle-agenda is actually super useful for me, makes me actually remember to do things.

However, there is a small issue that makes using it a little bit inconvenient.

The behaviour is the following: you have the idle-agenda enabled, and you leave Emacs running for a while. Eventually the idle agenda buffer pops up. After that time, at some point you get back to using Emacs, and naturally, after studying your agenda, you want to close it.

When using a default org agenda, after pressing q, the window (emacs term, nowadays you could say, "pane") disappears along with the agenda buffer. However, this is not the case when that window has been spawned by org-idle-agenda. Would it be possible to make it behave the same way as the "stock" agenda?

Conversely, perhaps it could be better to spawn the idle-agenda in a separate frame (nowadays you would say "window"), or raise it to the top if it had already been spawned.

May I suggest such a feature?