fix(joined-events): update check-in button disabled state

Signed-off-by: Noa Virellia <noa@requiem.garden>

client/cms/src/components/events/joined-events.containers.tsx

@@ -18,7 +18,7 @@ export function JoinedEventGridFooter({ event }: { event: EventInfo }) {
     <div className="flex flex-row justify-between w-full gap-4">
       <CheckinQrDialogContainer event={event}>
         <DialogTrigger asChild>
-          <Button className="flex-1" disabled={isOutOfDateRange}>
+          <Button className="flex-1" disabled={!canCheckIn}>
             {isOutOfDateRange && '未到签到时间'}
             {isCheckedIn && '已签到'}
             {canCheckIn && '签到'}