Make the lights blue when the pose is recognized

Author: civerachb-cpr

turtlebot4_vision_tutorials/turtlebot4_vision_tutorials/pose_detection.py

@@ -257,6 +257,8 @@ def angle_with_y(v):
             self.dir_confirm = 1
             self.dir = dir_temp
 
+        self.lights_blue_ = self.dir != Dir.STOP
+
         if self.dir_confirm >= 3:
             cmd_vel_msg = Twist()
             if self.dir == Dir.LEFT: