Bump @babel/runtime from 7.3.4 to 7.4.2

Bumps [@babel/runtime](https://github.com/babel/babel) from 7.3.4 to 7.4.2.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.3.4...v7.4.2)

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

package.json

@@ -50,7 +50,7 @@
     "webpack-dev-server": "^3.2.1"
   },
   "dependencies": {
-    "@babel/runtime": "^7.3.4",
+    "@babel/runtime": "^7.4.2",
     "bootstrap": "^4.3.1",
     "jquery": "^3.3.1",
     "popper.js": "^1.14.7"