Cleaning code ... unifying user interface, rewriting communication, power saving

Something what is finished now

• Switching to white background, maybe it is bad step, but why wasting light
  you can change black/white theme in setup
• New font something middle between old small/big combination
• User name is auto updated in contact lists on all remote units. 
• Addressing and protocol adapted for future #meshtastic support.
• Soon you can send message to #meshtastic network, they nodes forward this message  to another Armachat unit, but you can not read this message on Meshtastic app :(
• Also working on adaptation Meshtastic mesh routing protocol for armachat (Full interconnection is little hard, but maybe in far future I want this)

Power management

I am searching way how to reduce consumption but I found only one way ... reduce backlit

• MCU 20mA
• LoRa 10mA
• Backlit 30mA

Total 60mA, if I switch-off lora, there is no receiving wake up.
If MCU go to sleep, display freeze.
Lowering backlight (no switch-off just to 10%)
I can go to 30mA with full runtime a little readable display

Next you can compare user interface (Black unit - OLD. Green unit - NEW UI)

MAIN SCREEN

ADDRESS BOOK

TEXT EDITOR

SETUP