Potential fix for code scanning alert no. 474: Inefficient regular expression

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: LCSOGthb

scripts.js

@@ -95,7 +95,7 @@ function validateIP (ip) {
 
 // Validate URL
 function validateURL (url) {
-  const regex = /^(https?:\/\/)?[\w.-]+(\.[\w.-]+)+[/#?]?.*$/
+  const regex = /^(https?:\/\/)?[A-Za-z0-9_.-]+(\.[A-Za-z0-9_.-]+)+[/#?]?.*$/
   return regex.test(url)
 }