tests

Add isPreviewCommand to command state #1552

Job	Run time
yarn-lockfile-check / lockfile-check	10s
linux-unit-tests / determine-node-versions	8s
linux-unit-tests / prevent-typescript-dependency / prevent-typescript-dependency	20s
linux-unit-tests / linux-unit-tests (25)	42s
linux-unit-tests / linux-unit-tests (20)	39s
linux-unit-tests / linux-unit-tests (22)	33s
linux-unit-tests / linux-unit-tests (24.13.0)	35s
windows-unit-tests	0s
	3m 7s

Provide feedback