Improvement: save and export/import settings

[nobless]

Hello, it would be nice to save servers list to cloud if it possible of course through account synchronization. Or maybe manipulations of config like import/export it or load from URL.

Servers visibility could be also improved in case one of servers is down, all others is not visible. I think it would be more comfortable to see all other servers except that which failed.

Thanks, for app its nice! :)