DomRenderer: fix touch scrolling starting from text #680

Job	Run time
lint	52s
test-api-parallel (18, ubuntu, chromium)	2m 27s
test-api-parallel (18, ubuntu, firefox)	2m 40s
build	57s
test-playwright-parallel (18, ubuntu, chromium)	1m 36s
test-unit-parallel (18, ubuntu)	1m 4s
test-playwright-parallel (18, ubuntu, firefox)	1m 40s
test-unit-parallel (18, macos)	1m 41s
test-unit-parallel (18, windows)	3m 27s
test-playwright-parallel (18, ubuntu, webkit)	1m 59s
release-dry-run (18)	1m 47s
test-api (18, windows, chromium)	4m 35s
test-unit-coverage	1m 5s
test-api (18, windows, firefox)	4m 13s
	30m 3s

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