Keyhelp Webpanel Integration - Paymenter v1.2

Great extension
Could you kindly fix the /api/v1/ to /api/v2/, As the keyhelp v1 is past and now v2

I tested this plugin thoroughly and overall it has a solid foundation. The integration is well structured and the core functionality is implemented in a clean way.

However, there is currently an issue with the API connection which prevents the plugin from working correctly out of the box.

The plugin is using the following endpoint:
`/api/v1/admin`

This endpoint is not compatible with newer KeyHelp versions.
It needs to be updated to:

`/api/v2`

After changing this, the plugin works perfectly fine and all features (such as account creation and fetching hosting plans) function without any issues.

Suggestion for improvement:
It would be better to either update the API version in the code to v2 by default, or make the API version configurable (e.g. v1 / v2). This would improve compatibility and make the plugin more future-proof.

Aside from this issue, the plugin is a good base and works reliably once the API endpoint is corrected.

This is a great Extension and some really nice Features always included its a good Alternative to Plesk and this for Free. Thanks Pringels.DC for this.