tailsitter: reduce tilt to switch to FW in front transition

This is to allow transitions in stabilized mode, where the tilt is set directly with
    stick inputs. For Position control / Auto mode it was fine because there the pitch
    is set by the transition logic.

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>

src/modules/vtol_att_control/tailsitter.cpp

@@ -44,7 +44,7 @@
 
 #include <uORB/topics/landing_gear.h>
 
-#define PITCH_TRANSITION_FRONT_P1 -1.1f	// pitch angle to switch to TRANSITION_P2
+#define PITCH_TRANSITION_FRONT_P1 -0.5f	// pitch angle to switch to TRANSITION_P2 (28°)
 #define PITCH_TRANSITION_BACK -0.25f	// pitch angle to switch to MC
 
 using namespace matrix;