Removes the warning when running "yarn install"

warning " > [email protected]" has unmet peer dependency "webpack-sources@*".

package.json

@@ -104,6 +104,7 @@
     "webpack-bundle-analyzer": "^4.4.0",
     "webpack-cli": "^4.5.0",
     "webpack-dev-server": "^4.3.0",
+	"webpack-sources": "^3.2.3",
     "zip-webpack-plugin": "^4.0.1"
   },
   "dependencies": {}