[Refactor] Network Configuration Cleanup

[Moehammered]

Network configuration at the moment doesn't follow the configuration pattern that is implemented for the other menu screens.

The refactor will also clean it up so that the following options are easily configurable by the user:

• Manual PC IP
• Broadcast Address
• Manual Mode
• Ports (though this will need a warning to tell the user the PC and app must match)

This is tied to the software keyboard refactor going on at the moment. (Issue #40)