Fix a type issue on color lamp

In the Python lamps, I used a trick to convert input to int.. temp =
int(white_temperature). But the dashboard was sending white_temperature
= '3000', yes a string and Py is ok w/ that. int('3000') = 3000

This fix the issue.

apps/dashboard/xaal/dashboard/static/tags/lamp_color.tag

@@ -167,12 +167,12 @@
 
   brightness_input(e) {
     value = e.target.value
-    sio_send_request(this.addr,'set_brightness',{'brightness':value})
+    sio_send_request(this.addr,'set_brightness',{'brightness':parseInt(value)})
   }
 
   white_temperature_input(e) {
     value = e.target.value
-    sio_send_request(this.addr,'set_white_temperature',{'white_temperature':value})
+    sio_send_request(this.addr,'set_white_temperature',{'white_temperature':parseInt(value)})
   }
 
 </script>