Updated the URL validation regex to have maximum TLD length of 63 characters

Author: VarunSriram99

Diff for: src/common/constants.js

@@ -38,7 +38,7 @@ export const UNSPLASH_BASE_URL = "https://api.unsplash.com/search/photos";
 export const DIRECT_UPLOAD_ENDPOINT = "/api/direct_uploads";
 
 export const URL_REGEXP =
-  /[(http(s)?)://(www.)?a-zA-Z0-9@:%._+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_+.~#?&//=]*)/;
+  /[(http(s)?)://(www.)?a-zA-Z0-9@:%._+~#=]{2,256}\.[a-z]{2,63}\b([-a-zA-Z0-9@:%_+.~#?&//=]*)/;
 
 export const YOUTUBE_URL_REGEXP =
   /^((?:https?:)?\/\/)?((?:www|m)\.)?((?:youtube\.com|youtu.be))(\/(?:[\w-]+\?v=|embed\/|v\/)?)([\w-]+)(\S*?)(\?[^#]*)?$/;