Rewrite jest config to json format

jest.config.js

@@ -1,14 +0,0 @@
-/*
- * For a detailed explanation regarding each configuration property, visit:
- * https://jestjs.io/docs/configuration
- */
-
-module.exports = {
-	clearMocks: true,
-	collectCoverage: true,
-	coverageDirectory: 'coverage',
-	coverageProvider: 'v8',
-	setupFilesAfterEnv: [
-		'jest-extended/all'
-	]
-};

jest.config.json

@@ -0,0 +1,9 @@
+{
+	"clearMocks": true,
+	"collectCoverage": true,
+	"coverageDirectory": "coverage",
+	"coverageProvider": "v8",
+	"setupFilesAfterEnv": [
+		"jest-extended/all"
+	]
+}