Bump eslint from 4.13.1 to 4.19.1

Bumps [eslint](https://github.com/eslint/eslint) from 4.13.1 to 4.19.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v4.13.1...v4.19.1)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

package-lock.json

@@ -6,7 +6,7 @@
   "devDependencies": {
     "bootstrap": "^3.3.7",
     "css-loader": "^0.28.7",
-    "eslint": "^4.13.1",
+    "eslint": "^4.19.1",
     "eslint-loader": "^1.9.0",
     "eslint-plugin-react": "^7.4.0",
     "gh-pages": "^1.1.0",