[email protected] Update supported country list & change redirection from twitter to X platform

[phatpt8]

This is the standard PR description template.

Delete the parts of this template that aren’t relevant to the current PR you are submitting – for example, you may not need to amend documentation or testing of the component.

---

A short description of your PR goes here. Feel free to copy & paste the CHANGELOG entry that you've added here.

• Stop Portugal, Romania, and New Zealand support
• Support new country Slovakia
• Redirect user from Twitter to X
  • still keep the Twitter icon because it is not available in the Icon package
  • Keep the same GTM tag so as not to affect the tracking data.

---

UI Review Checks

• README and/or UI Documentation has been [created|updated]
• Unit tests have been [created|updated]
• This code has been checked with regard to our accessibility standards

Browsers Tested

• Chrome (latest)
• Internet Explorer 11
• Mobile (Please list device/browser – Ideally one iPhone model and one Android)

List any other browsers that this PR has been tested in:

• View the Browser Support Checklist