Update user in activity query

Signed-off-by: Etzelia <etzelia@hotmail.com>

activity.py

@@ -33,7 +33,7 @@ def activity_results(form):
         players = []
         for player in form.players.split(","):
             players.append(player.strip())
-        players_clause = " WHERE ({}) ".format(" OR ".join(["player LIKE '%%{}%%'".format(p) for p in players]))
+        players_clause = " WHERE ({}) ".format(" OR ".join(["cu.user LIKE '%%{}%%'".format(p) for p in players]))
 
     time_clause = ""
     if form.date_from or form.date_to: