Changed order of columns with sort by names

server.py

@@ -303,8 +303,10 @@ class LeaderboardServer:
                     key
                     for key in dict.fromkeys(
                         first_attributes
-                        + list(self.TASKS_METADATA.keys())
-                        + list(dataframe.columns)
+                        + sorted(
+                            list(self.TASKS_METADATA.keys())
+                            + list(dataframe.columns)
+                        )
                     ).keys()
                     if key in dataframe.columns
                 ]