v2.0.0-alpha.2 can't handle inputs from the Gesture sensor correctly

[kotobuki]

Expected behaviour

• The joystick status returns to Center when a detected gesture is None
• The buttons 1-5 status returns to Released when a detected gesture is None

Current behaviour

• The joystick status remains the last detected gesture within Left, Right, Up or Down
• The buttons 1-5 status remains Pressed

[kotobuki]

Fixed by 4e7dd46bbb501fc88019bbe5194904124eb944d6