better handle roaming loop

kuukar/kuukar_leds.py

@@ -79,5 +79,5 @@ class leds:
             print(leds.__blink_func(self.__get_time(), duration))
             time.sleep(0.05)
             if self.__get_time() > duration:
-                flashing = False
+                self.flashing = False
                 break

kuukar/kuukar_motion.py

@@ -110,6 +110,7 @@ class motion:
         while True:
             if self.roaming:
                 self.__roam_handle()
+            time.sleep(0.3)
 
     def __roam_handle(self):
         sensitivity = 35
@@ -149,5 +150,4 @@ class motion:
                     self.turn(-turn_speed, 1)
                     self.drive(drive_speed)
         if not self.roaming:
-            self.stop()
-        time.sleep(0.3)
+            self.stop()