refactor(@angular/ssr): simplify redirect URL determination #2129

Job	Run time
list	23s
workflow (modules-builder-tests)	1m 55s
workflow (devkit-core-tests)	1m 19s
workflow (devkit-core-tests-rerun)	1m 24s
workflow (build-unit-tests)	2m 35s
workflow (build-cli)	1m 44s
	9m 20s

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