v0.5.1 - Offline Status

Thank you to @scr34m for the idea and contribution!

phantom will now show up on your LAN server list even if the remote server is offline, displaying a red "Server Offline" server that's not connectable. Once the server comes back online, the server will automatically update and you can join.

Other changes

• Adds more logging for server connectivity status
• Automatically reconnects to server after encountering an error now. Previously, this might have caused phantom to appear to randomly stop working for some clients.
• Adds an arm8 / arm64 Linux binary

Got an idea for phantom? Tell me :)