MultiServer/CommonClient: We forgot about Item Links again (Hint Priority) (#4314)

* Vi don't forget about itemlinks challenge difficulty impossible

* People other than Vi also don't forget about ItemLinks challenge difficulty impossible

NetUtils.py

@@ -232,7 +232,7 @@ class JSONtoTextParser(metaclass=HandlerMeta):
 
     def _handle_player_id(self, node: JSONMessagePart):
         player = int(node["text"])
-        node["color"] = 'magenta' if player == self.ctx.slot else 'yellow'
+        node["color"] = 'magenta' if self.ctx.slot_concerns_self(player) else 'yellow'
         node["text"] = self.ctx.player_names[player]
         return self._handle_color(node)