Migrated FileBrowser to TS #2701

Job	Run time
build	5m 50s
adapter-tests-gui	9m 55s
adapter-tests (16.x, ubuntu-latest)	1m 55s
adapter-tests (16.x, windows-latest)	6m 10s
adapter-tests (16.x, macos-latest)	3m 54s
adapter-tests (18.x, ubuntu-latest)	2m 3s
adapter-tests (18.x, windows-latest)	8m 24s
adapter-tests (18.x, macos-latest)	4m 37s
adapter-tests (20.x, ubuntu-latest)	1m 48s
adapter-tests (20.x, windows-latest)	6m 8s
adapter-tests (20.x, macos-latest)	5m 51s
deploy	0s
	56m 35s

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