fix(@angular/cli): fix broken img ref in ai-tutor #10246

Job	Run time
build	1m 34s
lint	1m 45s
build-e2e-windows	1m 31s
e2e-windows	1s
Browser Compatibility Tests	1s
publish-snapshots	1s
e2e	1s
test	1s
e2e-snapshots	1s
e2e-package-managers	1s
	4m 57s

Provide feedback