Implement EventStream for live schedule updates

ui/locations.tsx

@@ -0,0 +1,12 @@
+"use client";
+import { useSchedule } from "@/app/schedule/context";
+
+export function Locations() {
+	const schedule = useSchedule();
+	return <ul>
+		{schedule!.locations.map(location => <li key={location.id}>
+			<h3>{location.name}</h3>
+			{location.description ?? "No description provided"}
+		</li>)}
+	</ul>;
+}