bug #3182 Fixed front-end dependencies issues (javiereguiluz)

This PR was merged into the 2.x branch.

Discussion
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Fixed front-end dependencies issues

Fixes #3149.

@bozhidargyurov @Dallas62 could you please check if this fixes the issues for you? Thanks!

Commits
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56da0b4 Fixed front-end dependencies issues

package.json

@@ -5,7 +5,7 @@
     "bootstrap": "^4.1.0",
     "codemirror": "^5.47.0",
     "featherlight": "^1.7.13",
-    "jquery": "^3.3.1 <3.5.0",
+    "jquery": "^3.5.1",
     "jquery-highlight": "^3.4.0",
     "jquery.are-you-sure": "^1.9.0",
     "node-sass": "^4.9.4",