various fixes for nano g2 gps

- baud rate changed to default
- switch state detected at boot to enable position
- small edge cases fixed
- more mesh debugging output added

Co-authored-by: LitBomb <lithangw@hotmail.com>
Co-authored-by: Nick from BOSTON

variants/nano_g2_ultra/nano-g2.cpp

@@ -34,6 +34,8 @@ void NanoG2Ultra::begin()
   pinMode(EXT_NOTIFY_OUT, OUTPUT);
   digitalWrite(EXT_NOTIFY_OUT, LOW);
 
+  pinMode(GPS_EN, OUTPUT); // Initialize GPS power pin
+  
   Wire.begin();
   pinMode(SX126X_POWER_EN, OUTPUT);
   digitalWrite(SX126X_POWER_EN, HIGH);