fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-JQUERY-565129

Author: snyk-bot

package.json

@@ -48,7 +48,7 @@
   "dependencies": {
     "autosize": "4.0.2",
     "bootstrap": "3.4.1",
-    "jquery": "3.4.1",
+    "jquery": "3.5.0",
     "jquery-ui-dist": "1.12.1",
     "prismjs": "1.20.0",
     "scrollspy-js": "0.1.3"