feat(Explore): make sure Loki labels are up to date (#16131)

* 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

tsconfig.json

@@ -31,7 +31,8 @@
     "paths": {
       "app": ["app"],
       "sass": ["sass"]
-    }
+    },
+    "skipLibCheck": true
   },
   "include": ["public/app/**/*.ts", "public/app/**/*.tsx", "public/test/**/*.ts", "public/vendor/**/*.ts"]
 }