return raw kobuki_message instead of jsonify in data endpoint

src/Python/flask/web/app.py

@@ -76,7 +76,7 @@ def move():
 
 @app.route('/data', methods=['GET'])
 def data():
-    return jsonify(kobuki_message)
+    return kobuki_message
 
 @app.route("/database")
 def database():