Improve Page Editor utils method names #20963

Job	Run time
test	5m 54s
build	2m 44s
dead-code	1m 42s
generate-headers	1m 1s
prettier	1m 7s
lint	3m 58s
types	1m 41s
end-to-end-tests / run-tests (chrome)	15m 42s
end-to-end-tests / run-tests (edge)	15m 20s
upload-to-codecov	14s
Create report	29s
	49m 52s

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