AxxSolder v3.0.2

Stable release of AxxSolder v3.0.2

Changes from previous release (AxxSolder v3.0.1):

• Update user settings name -EM Time- to -Sleep Time- c0982eb

• Make a reboot after new user settings are saved to flash 5a8c5a2

• Correct parameter to achieve a switching freq. of 20 Mhz

• Minor updates on PCB layout such as silkscreen placement and trace alignment

• Update standby state to respect a lower set temperature than standby temp when going into standby mode

• implement power limit setting

• Updates and tuning on PID controller