Refactor move function to publish direction from request form

src/Python/flask/web/app.py

@@ -15,7 +15,8 @@ def index():
 
 @app.route('/move', methods=['POST'])
 def move():
-    result = mqtt_client.publish("home/commands", "Knop ingedrukt!")
+    direction = request.form['direction']
+    result = mqtt_client.publish("home/commands", direction)
     if result.rc == mqtt.MQTT_ERR_SUCCESS:
         print("Bericht succesvol gepubliceerd")
     else: