feat: don't delete shell/term windows via C-g #1479

Job	Run time
test (ubuntu-latest, 27.2, false)	2m 21s
test (ubuntu-latest, 28.2, false)	3m 36s
test (ubuntu-latest, 29.3, false)	3m 47s
test (macos-latest, 27.2, false)	2m 10s
test (macos-latest, 28.2, false)	3m 47s
test (macos-latest, 29.3, false)	3m 22s
test (windows-latest, 27.2, false)	2m 20s
test (windows-latest, 28.2, false)	3m 35s
test (windows-latest, 29.3, false)	3m 24s
test (ubuntu-latest, snapshot, true)	2m 42s
test (macos-latest, snapshot, true)	3m 8s
test (windows-latest, snapshot, true)	3m 11s
	37m 23s

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