Add new helper method: isFromEU() to detect whether user comes from an EU country

package.json

@@ -210,6 +210,9 @@
     "test:mocha": "mocha test/mocha*js",
     "test:playwright": "playwright test"
   },
+  "dependencies": {
+    "detect-europe-js": "^0.1.1"
+  },
   "devDependencies": {
     "@babel/parser": "7.15.8",
     "@babel/traverse": "7.23.2",