fix: upgrade jquery from 3.2.1 to 3.4.1

Snyk has created this PR to upgrade jquery from 3.2.1 to 3.4.1.

See this package in NPM:
https://www.npmjs.com/package/jquery

See this project in Snyk:
https://app.snyk.io/org/coderbyheart/project/a5aa72bb-b5d9-4dec-adc9-3238d3e5caa9?utm_source=github&utm_medium=upgrade-pr

package.json

@@ -29,7 +29,7 @@
     "bootstrap": "^4.0.0-beta",
     "contentful": "^4.1.2",
     "font-awesome": "^4.7.0",
-    "jquery": "^3.2.1",
+    "jquery": "^3.4.1",
     "meownica-web-fonts-loader": "^1.2.1",
     "popper.js": "^1.12.5",
     "react": "^16.0.0",