set repeater/room server Lat & Lon to 0.0 as default

variants/xiao_c3/platformio.ini

@@ -30,8 +30,8 @@ build_flags =
   -D SX126X_RX_BOOSTED_GAIN=1
   -D LORA_TX_POWER=22
   -D ADVERT_NAME='"Xiao Repeater"'
-  -D ADVERT_LAT=-37.0
-  -D ADVERT_LON=145.0
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
   -D ADMIN_PASSWORD='"password"'
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
@@ -49,8 +49,8 @@ build_flags =
   -D WRAPPER_CLASS=CustomSX1268Wrapper
   -D LORA_TX_POWER=22
   -D ADVERT_NAME='"Xiao Repeater"'
-  -D ADVERT_LAT=-37.0
-  -D ADVERT_LON=145.0
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
   -D ADMIN_PASSWORD='"password"'
  ; -D MESH_PACKET_LOGGING=1
  ; -D MESH_DEBUG=1