increase offline queue size from 16 to 256 for all companion ble firmwares

variants/heltec_v2/platformio.ini

@@ -98,6 +98,7 @@ build_flags =
   -D MAX_GROUP_CHANNELS=8
   -D BLE_PIN_CODE=0
   -D BLE_DEBUG_LOGGING=1
+  -D OFFLINE_QUEUE_SIZE=256
 ;  -D ENABLE_PRIVATE_KEY_IMPORT=1
 ;  -D ENABLE_PRIVATE_KEY_EXPORT=1
 ;  -D MESH_PACKET_LOGGING=1