Cleanup unused Javascript (#3027)

* chore(js): be stricter about dead code warnings

* chore(js): remove dead code and unused exports

* rebase

* chore: remove unused files

* chore(deps): remove unused prop-types dep

* chore(js): remove unused function

* chore(deps): remove + check unused deps

* chore(js): remove unused exports. Closes #3036

web/tests/streamkeys.test.ts

@@ -1,4 +1,5 @@
 import { generateRndKey } from '../components/admin/config/server/StreamKeys';
+
 describe('generateRndKey', () => {
   test('should generate a key that matches the regular expression', () => {
     const key = generateRndKey();