add support for new companion ui on thinknode m1

variants/thinknode_m1/target.h

@@ -10,6 +10,7 @@
 #include <helpers/sensors/LocationProvider.h>
 #ifdef DISPLAY_CLASS
   #include <helpers/ui/GxEPDDisplay.h>
+  #include <helpers/ui/MomentaryButton.h>
 #endif
 
 class ThinkNodeM1SensorManager : public SensorManager {
@@ -37,6 +38,7 @@ extern ThinkNodeM1SensorManager sensors;
 
 #ifdef DISPLAY_CLASS
   extern DISPLAY_CLASS display;
+  extern MomentaryButton user_btn;
 #endif
 
 bool radio_init();