Set seed when generating interests into events

Prevent adding accounts from changing who's interestin in what in the
generated demo schedule.

server/generate-demo-schedule.ts

@@ -234,6 +234,7 @@ export function generateDemoAccounts(): Account[] {
 		});
 	}
 
+	seed = 1;
 	// These have a much higher probability of being in someone's interested list.
 	const desiredEvent = ["opening", "closing", "fursuit-games"];
 	const nonCrewEvents = events.filter(event => !event.crew);