fix(core): use Capacitor safe-area CSS variables on older WebViews #17810

Job	Run time
build-core	1m 13s
build-react	44s
test-core-lint	52s
build-angular	1m 8s
build-vue	36s
test-core-spec	41s
build-angular-server	39s
test-core-clean-build	13s
test-core-screenshot (3, 20)	1m 50s
test-core-screenshot (1, 20)	1m 51s
test-core-screenshot (5, 20)	1m 49s
test-core-screenshot (6, 20)	1m 49s
test-core-screenshot (16, 20)	1m 50s
test-core-screenshot (14, 20)	1m 52s
test-core-screenshot (15, 20)	1m 50s
test-core-screenshot (17, 20)	1m 49s
test-core-screenshot (7, 20)	1m 51s
test-core-screenshot (9, 20)	1m 49s
test-core-screenshot (18, 20)	1m 51s
test-core-screenshot (13, 20)	1m 50s
test-core-screenshot (20, 20)	1m 50s
test-core-screenshot (8, 20)	1m 51s
test-core-screenshot (12, 20)	1m 52s
test-core-screenshot (11, 20)	1m 51s
test-core-screenshot (10, 20)	1m 50s
test-core-screenshot (2, 20)	1m 49s
test-core-screenshot (19, 20)	1m 49s
test-core-screenshot (4, 20)	1m 50s
build-vue-router	39s
build-react-router	34s
test-angular-e2e (ng19)	39s
test-angular-e2e (ng20)	39s
test-angular-e2e (ng16)	39s
test-angular-e2e (ng18)	39s
test-angular-e2e (ng17)	39s
test-vue-e2e (vue3)	31s
test-react-router-e2e (reactrouter5)	13s
test-react-e2e (react17)	14s
test-react-e2e (react18)	14s
test-react-e2e (react19)	25s
verify-test-react-router-e2e	2s
verify-test-vue-e2e	3s
verify-test-react-e2e	2s
verify-test-angular-e2e	3s
verify-screenshots	4s
	49m 8s

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