Snap

Add focus stealing prevention to `MinimalWindowManager` #5014

Job	Run time
arches	1s
mir-libs (amd64)	17m 46s
mir-libs (armhf)	24m 50s
mir-libs (arm64)	26m 35s
snap (canonical/mir-test-tools, amd64)	10m 18s
snap (canonical/mir-test-tools, armhf)	10m 17s
snap (canonical/mir-test-tools, arm64)	10m 18s
snap (canonical/confined-shell-wip, amd64)	7m 2s
snap (canonical/confined-shell-wip, armhf)	10m 18s
snap (canonical/confined-shell-wip, arm64)	10m 18s
snap (canonical/ubuntu-frame, amd64)	7m 21s
snap (canonical/ubuntu-frame, armhf)	10m 19s
snap (canonical/ubuntu-frame, arm64)	10m 17s
snap (Miriway/Miriway, amd64)	8m 41s
snap (Miriway/Miriway, armhf)	10m 16s
snap (Miriway/Miriway, arm64)	10m 17s
	3h 4m 54s

Provide feedback