Fix build: add Adafruit_TinyUSB.h include in main.cpp, add build_unflags to prevent ARDUINO_USB_MODE redefinition warning

platformio.ini

@@ -10,6 +10,9 @@ lib_deps =
     adafruit/Adafruit TinyUSB Library@^3.1.0
     fastled/FastLED@^3.9.0
 
+build_unflags =
+    -DARDUINO_USB_MODE=1
+
 build_flags =
     -DARDUINO_USB_MODE=0
     -DARDUINO_USB_CDC_ON_BOOT=1

src/main.cpp

@@ -5,6 +5,7 @@
 #include <driver/gpio.h>
 #include <esp_rom_sys.h>
 #include "midi_transport.h"
+#include "Adafruit_TinyUSB.h"
 #include "pixel_stomp_mux.h"
 #include "led_stub.h"
 #include "switch_stub.h"