speedup tests

Author: Artem

package.json

@@ -42,7 +42,7 @@
     "start:web:public": "cross-env PUBLIC_DEV=true NODE_ENV=development TS_NODE_TRANSPILE_ONLY=true webpack serve --config ./configs/webpack.config.web.dev.ts",
     "test": "jest ./redisinsight/ui -w 1",
     "test:watch": "jest ./redisinsight/ui --watch -w 1",
-    "test:cov": "jest ./redisinsight/ui --coverage -w 1",
+    "test:cov": "jest ./redisinsight/ui --coverage -w 4",
     "test:cov:unit": "jest ./redisinsight/ui --group=-component --coverage -w 1",
     "test:cov:component": "jest ./redisinsight/ui --group=component --coverage -w 1",
     "type-check:ui": "tsc --project redisinsight/ui --noEmit"