discuss more power efficient data transmission

each espnow package takes around 200ms to send to the host. we should try to minimize the number of packages as it takes up the biggest amount of the wake time of the clients.

added client label

Discuss how to send fewer messages from satellite to host. Currently, we require at least 50ms per message and send a message per sensor readout. Think about changing from JSON back to a C struct to compress sent data.

See !27 (merged)

closed