fix: Linux asks with its own dialogs instead of zenity or kdialog
Questions, alerts and the page's date and time are now Snowbound's own
dialogs in the window on every Linux desktop, and the file chooser falls
back from the desktop portal to Snowbound's own rather than to zenity or
kdialog. The same dialog looks and answers the same everywhere, and none
of them depends on a tool the desktop may not ship.
Assisted-by: claude-opus-5.5
f0c2aa56dbclover caruso committed on 10/2/2026, 8:59:00 AMparent42499fe