gtk4: Clean menu
Implement "Clean" menu for gtk4-client, listing all Clean Pollution and Clean Fallout targets.
It makes sense to implement it directly that way to gtk4-client, instead of replicating the outdated cleaning setup of older clients.
Implement "Clean" menu for gtk4-client, listing all Clean Pollution and Clean Fallout targets.
It makes sense to implement it directly that way to gtk4-client, instead of replicating the outdated cleaning setup of older clients.