Function toggleChannel

studio/src/pages/Events.tsx:119–123

(channel: EventChannel)

  };

  const toggleChannel = (channel: EventChannel) => {
    setSelectedChannels((prev) =>
      prev.includes(channel) ? prev.filter((c) => c !== channel) : [...prev, channel]
    );
  };

  const toggleEventType = (type: string) => {
    setSelectedTypes((prev) =>