fix(@schematics/angular): ensure app-shell schematic consistently use… #1406

Job	Run time
lint	1m 57s
e2e_windows (windows-2025, 22, npm, 1)	1m 46s
e2e_windows (windows-2025, 22, npm, 0)	53s
build	10s
e2e_windows (windows-2025, 22, npm, 3)	34s
e2e_windows (windows-2025, 22, npm, 5)	32s
e2e_windows (windows-2025, 22, npm, 2)	57s
e2e_windows (windows-2025, 22, esbuild, 5)	33s
e2e_windows (windows-2025, 22, esbuild, 2)	1m 1s
e2e_windows (windows-2025, 22, esbuild, 3)	32s
e2e_windows (windows-2025, 22, npm, 4)	46s
e2e_windows (windows-2025, 22, esbuild, 4)	1m 9s
e2e_windows (windows-2025, 22, esbuild, 0)	58s
e2e_windows (windows-2025, 22, esbuild, 1)	53s
e2e-snapshots	0s
Browser Compatibility Tests	0s
e2e	0s
publish-snapshots	0s
test	0s
e2e-package-managers	0s
	12m 41s

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