fix(content): automatically recalculate offset when header/footer changes #17866

Job	Run time
build-core	1m 11s
test-core-clean-build	10s
build-vue	37s
build-angular	58s
build-react	47s
test-core-spec	44s
test-core-lint	49s
build-angular-server	37s
test-core-screenshot (2, 20)	8m 35s
test-core-screenshot (10, 20)	3m 55s
test-core-screenshot (20, 20)	4m 34s
test-core-screenshot (6, 20)	7m 59s
test-core-screenshot (15, 20)	7m 53s
test-core-screenshot (17, 20)	7m 47s
test-core-screenshot (3, 20)	6m 51s
test-core-screenshot (16, 20)	6m 11s
test-core-screenshot (7, 20)	3m 12s
test-core-screenshot (12, 20)	4m 14s
test-core-screenshot (9, 20)	4m 26s
test-core-screenshot (13, 20)	5m 16s
test-core-screenshot (5, 20)	7m 50s
test-core-screenshot (19, 20)	5m 49s
test-core-screenshot (1, 20)	7m 3s
test-core-screenshot (18, 20)	7m 34s
test-core-screenshot (11, 20)	4m 33s
test-core-screenshot (8, 20)	4m 4s
test-core-screenshot (14, 20)	6m 1s
test-core-screenshot (4, 20)	8m 15s
build-vue-router	44s
build-react-router	27s
test-angular-e2e (ng17)	3m 44s
test-angular-e2e (ng20)	3m 40s
test-angular-e2e (ng18)	3m 44s
test-angular-e2e (ng16)	4m 4s
test-angular-e2e (ng19)	3m 37s
test-react-router-e2e (reactrouter5)	2m 43s
test-react-e2e (react17)	2m 48s
test-react-e2e (react18)	2m 54s
test-react-e2e (react19)	2m 53s
test-vue-e2e (vue3)	3m 21s
verify-test-react-router-e2e	3s
verify-test-react-e2e	3s
verify-test-vue-e2e	3s
verify-test-angular-e2e	3s
verify-screenshots	3s
	2h 42m 49s

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