* dark mode & stream overlay
* removed all redundant imports
* update for the new xcode version with fixes for the new 'implicitly retains self warning'
* reworked the overlay view
* cleaning up unused variables
* small corrections
- now store host uuid and mac address
- use uuid to check for duplicate hosts
- try local and external IPs
- pair status is shown
- server status is shown
- validate host when manually adding