Bump webpack from 4.38.0 to 4.39.1

Bumps [webpack](https://github.com/webpack/webpack) from 4.38.0 to 4.39.1.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.38.0...v4.39.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -26,7 +26,7 @@
     "eslint-plugin-react": "^7.14.3",
     "eslint-plugin-react-hooks": "^1.6.1",
     "eslint-plugin-standard": "^4.0.0",
-    "webpack": "^4.38.0"
+    "webpack": "^4.39.1"
   },
   "devDependencies": {
     "@ahmedelgabri/prettier-config": "^2.0.0",