Add OFFLINE_QUEUE_SIZE=256 for xiao nrf52 companion usb

Author: recrof

variants/xiao_nrf52/platformio.ini

@@ -72,11 +72,11 @@ build_flags =
   -I examples/companion_radio/ui-orig
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
+  -D OFFLINE_QUEUE_SIZE=256
   -D QSPIFLASH=1
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
 build_src_filter = ${Xiao_nrf52.build_src_filter}
-  +<helpers/nrf52/SerialBLEInterface.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-orig/*.cpp>
 lib_deps =
@@ -117,4 +117,4 @@ build_flags =
 build_src_filter = ${Xiao_nrf52.build_src_filter}
   +<../examples/kiss_modem/*.cpp>
 lib_deps =
-  ${Xiao_nrf52.lib_deps}
+  ${Xiao_nrf52.lib_deps}