refactor(@schematics/angular): add centered-layout for ng starter tem… #3088

Job	Run time
list	26s
workflow (build-cli)	1m 42s
workflow (build-unit-tests)	2m 35s
workflow (devkit-core-tests)	1m 21s
workflow (devkit-core-tests-rerun)	1m 29s
workflow (modules-builder-tests)	2m 0s
	9m 33s

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