Upgrade core-js and add URL polyfill

- Upgraded core-js from v2.x to v3.1.3
- Updated core-js import statements
- Enabled URL polyfill

app/assets/javascripts/commons/polyfills.js

 // ECMAScript polyfills
-import 'core-js/fn/array/fill';
-import 'core-js/fn/array/find';
-import 'core-js/fn/array/find-index';
-import 'core-js/fn/array/from';
-import 'core-js/fn/array/includes';
-import 'core-js/fn/object/assign';
-import 'core-js/fn/object/values';
-import 'core-js/fn/object/entries';
-import 'core-js/fn/promise';
-import 'core-js/fn/promise/finally';
-import 'core-js/fn/string/code-point-at';
-import 'core-js/fn/string/from-code-point';
-import 'core-js/fn/string/includes';
-import 'core-js/fn/symbol';
-import 'core-js/es6/map';
-import 'core-js/es6/weak-map';
+import 'core-js/es/array/fill';
+import 'core-js/es/array/find';
+import 'core-js/es/array/find-index';
+import 'core-js/es/array/from';
+import 'core-js/es/array/includes';
+import 'core-js/es/object/assign';
+import 'core-js/es/object/values';
+import 'core-js/es/object/entries';
+import 'core-js/es/promise';
+import 'core-js/es/promise/finally';
+import 'core-js/es/string/code-point-at';
+import 'core-js/es/string/from-code-point';
+import 'core-js/es/string/includes';
+import 'core-js/es/symbol';
+import 'core-js/es/map';
+import 'core-js/es/weak-map';
+import 'core-js/modules/web.url';
 
 // Browser polyfills
 import 'formdata-polyfill';

app/assets/javascripts/test_utils/index.js

-import 'core-js/es6/map';
-import 'core-js/es6/set';
+import 'core-js/es/map';
+import 'core-js/es/set';
 import simulateDrag from './simulate_drag';
 import simulateInput from './simulate_input';
 

package.json

@@ -56,7 +56,7 @@
     "clipboard": "^1.7.1",
     "codesandbox-api": "^0.0.20",
     "compression-webpack-plugin": "^2.0.0",
-    "core-js": "^2.4.1",
+    "core-js": "^3.1.3",
     "cropper": "^2.3.0",
     "css-loader": "^1.0.0",
     "d3": "^4.13.0",

yarn.lock

@@ -2816,11 +2816,16 @@ core-js@3.0.1:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.0.1.tgz#1343182634298f7f38622f95e73f54e48ddf4738"
   integrity sha512-sco40rF+2KlE0ROMvydjkrVMMG1vYilP2ALoRXcYR4obqbYIuV3Bg+51GEDW+HF8n7NRA+iaA4qD0nD9lo9mew==
 
-core-js@^2.2.0, core-js@^2.4.0, core-js@^2.4.1:
+core-js@^2.2.0, core-js@^2.4.0:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
   integrity sha512-RszJCAxg/PP6uzXVXL6BsxSXx/B05oJAQ2vkJRjyjrEcNVycaqOmNb5OTxZPE3xa5gwZduqza6L9JOCenh/Ecw==
 
+core-js@^3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.1.3.tgz#95700bca5f248f5f78c0ec63e784eca663ec4138"
+  integrity sha512-PWZ+ZfuaKf178BIAg+CRsljwjIMRV8MY00CbZczkR6Zk5LfkSkjGoaab3+bqRQWVITNZxQB7TFYz+CFcyuamvA==
+
 core-js@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.3.0.tgz#fab83fbb0b2d8dc85fa636c4b9d34c75420c6d65"