Active user counter should only show users that are currently recording

[ascpixi]

This is a simple change - instead of emitting heartbeats anywhere...

lapse/apps/web/src/client/components/RootLayout.tsx

Lines 50 to 54 in 458eaf5

	useInterval(async () => {
	if (auth.currentUser) {
	await trpc.user.emitHeartbeat.mutate({});
	}
	}, 30 * 1000);

...only emit them when recording on /timelapse/create.

[httpparam]

assign please