* Migrated loki syntax and labels logic to useLokiSyntax hook

* Enable loki labels  refresh after specified interval has passed

* Enable periodic loki labels refresh when labels selector is opened

* Fix prettier

* Add react-hooks-testing-library and disable lib check on typecheck

* Add tests for loki syntax/label hooks

* Move tsc's skipLibCheck option to tsconfig for webpack to pick it up

* Set log labels refresh marker variable when log labels fetch start

* Fix prettier issues

* Fix type on activeOption in useLokiLabel hook

* Typo fixes and types in useLokiSyntax hook test fixes

* Make sure effect's setState is not performed on unmounted component

* Extract logic for checking if is component mounted to a separate hook