JS proxy - fix library initialization proxy
The proxy script has to be updated.
```
proxy?env=rosengeorgiev.dev.vereign.com:89 Uncaught DOMException: Failed to execute 'atob' on 'Window': The string to be decoded is not correctly encoded.
at https://rosengeorgiev.dev.vereign.com/vcl/js/proxy?env=rosengeorgiev.dev.vereign.com:89:21
```
issue