chore: configure jest to send output to stdout instead of stderr

See for details:
jestjs/jest#5064 (comment)

Relate to #1484

Author: php-coder

src/main/frontend/jest.config.js

@@ -1,5 +1,8 @@
 // @todo #1484 Document Jest usage
 module.exports = {
 	// https://jestjs.io/docs/en/configuration#watchman-boolean
-	"watchman": false
+	"watchman": false,
+	// See: https://github.com/facebook/jest/issues/5064#issuecomment-401451361
+	// @todo #1484 Remove usage of jest-standard-reporter once facebook/jest#5064 is resolved
+	"reporters": [ "jest-standard-reporter" ]
 }

src/main/frontend/package-lock.json

@@ -37,6 +37,7 @@
     "babel-jest": "~26.6.3",
     "babel-loader": "~8.1.0",
     "jest": "~26.6.3",
+    "jest-standard-reporter": "~2.0.0",
     "react": "~16.8.6",
     "react-dom": "~16.8.6",
     "webpack": "~4.43.0",