Directly show XCreds login window when locking the screen

[Melvin-P-NL]

It would be great if the XCreds login window shows up directly when locking the screen via the Apple menu (or Control+Command+Q). It currently needs one screen sleep to trigger this function.

https://macadmins.slack.com/archives/C03GBF2DE7P/p1771964728749249

[tperfitt]

I looked over the code and I now remember that I had to wait for the screen to lock and sleep and then wake up to make it work reliably. Not sure what the exact issue was, but am hesitant to modify it since I suspect it will cause issues. How important is it to you?