fix: turn off no-undef for ts files #119

Job	Run time
check	54s
test-chrome	10s
test-node (windows-latest, lts/*)	2m 18s
test-chrome-webworker	18s
test-node (ubuntu-latest, lts/*)	12s
test-firefox	10s
test-node (macos-latest, lts/*)	1m 10s
test-electron-main	32s
test-electron-renderer	12s
test-firefox-webworker	12s
test-webkit (ubuntu-latest, lts/*)	17s
test-webkit-webworker (ubuntu-latest, lts/*)	10s
test-webkit (macos-latest, lts/*)	1m 8s
test-webkit-webworker (macos-latest, lts/*)	1m 19s
release	0s
	9m 2s

Provide feedback