[Feature request] Auto remove popup messages when they are not needed anymore

I notice some popup messages stay on the screen even when not needed anymore. It would be an improvement if they could go away by themselves, not requiring constant input.

Some examples:
1. The print is finished (thus print finished popup appears), but it stays on the screen waiting for ok to be clicked even when e.g. I have started a new print.
2. (WiFi) signal to the printer is lost (after rebooting or turning the printer off). The popup (K-Touch timeout screen) stays on there even when the printer is re-connected again.

Maybe popups that are waiting for input can be given a timer so they auto remove/auto-dismiss themselves after some time? And/or just remove them after they are not needed anymore.

No files or tests are named in the issue; start by locating the popup-message handling and the events for print completion and WiFi disconnect or reconnect. Done means obsolete popups dismiss automatically, including after a new print starts or the printer reconnects, while waiting popups can time out without requiring input.

Written by the indexing model from the issue text.