ACLs screen fails to load if subjects contain unicode characters

[richardtippl-ext90046]

If the attached Kafka cluster has ACL configuration containing certificates with Unicode characters in the subject field, AKHQ completely fails to load the ACLs screen. This is because btoa used does not support non-latin characters.

see: https://developer.mozilla.org/en-US/docs/Web/API/Window/btoa#unicode_strings

AKHQ version: 0.25.1

Uncaught (in promise) DOMException: Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range.
    at https://<domain>/ui/assets/index-BdxSfnGT.js:476:54779
    at Array.map (<anonymous>)
    at x5.handleData (https://<domain>/ui/assets/index-BdxSfnGT.js:476:54752)
    at x5.getAcls (https://<domain>/ui/assets/index-BdxSfnGT.js:476:54711)