docs: convert examples to ts, run doc verifier #379

Job	Run time
js-test-and-release / build	1m 3s
js-test-and-release / test-node (windows-latest, lts/*)	3m 53s
js-test-and-release / test-node (ubuntu-latest, lts/*)	56s
js-test-and-release / test-node (macos-latest, lts/*)	2m 27s
js-test-and-release / test-chrome-webworker	22s
js-test-and-release / check	1m 4s
js-test-and-release / test-electron-main	24s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	1m 25s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	1m 51s
js-test-and-release / test-electron-renderer	18s
js-test-and-release / test-firefox	1m 24s
js-test-and-release / test-chrome	1m 6s
js-test-and-release / test-firefox-webworker	16s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	48s
js-test-and-release / test-webkit (macos-latest, lts/*)	2m 15s
js-test-and-release / release-check	0s
js-test-and-release / release	-1s
	19m 31s

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