Add Support for Proxmox Backup Server

[W4RCL0UD]

It would be great to see added support for Proxmox Backup Server, currently I have to use extensions for dark mode but this would be much preferred :)

[centralhardware]

also interesting

[Weilbyte]

Not planned right now.

[speakradmin]

There's a fork here for PBS however there hasn't been much activity in over a year. Tried it on 2.2-5 and seems to work fine although not quite as polished as PVEDiscordDark

https://github.com/Luckyvb/PBSDiscordDark

The usual disclaimer applies: don't run scripts on your servers if you haven't thoroughly reviewed the contents!

[oskardotglobal]

I tested the fork on PBS 2.3-1 and can confirm it is still working