ThinknodeM5: enable wifi in usb companion

variants/thinknode_m5/platformio.ini

@@ -177,12 +177,14 @@ build_flags =
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
   -D ENABLE_USB_INTERFACE
+  -D ENABLE_WIFI_INTERFACE
 build_src_filter = ${ThinkNode_M5.build_src_filter}
   +<helpers/esp32/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
   +<helpers/ui/buzzer.cpp>
+  +<helpers/wifi/*.cpp>
 lib_deps =
   ${ThinkNode_M5.lib_deps}
   densaugeo/base64 @ ~1.4.0