Afevis d47a3b29c7 Fixes fake announcements for the shuttle loan event (#83801) ...

```
[18:29:06] Runtime in code/modules/events/shuttle_loan/shuttle_loan_event.dm, line 47: Cannot read null.sender
proc name: announce (/datum/round_event/shuttle_loan/announce)
src: /datum/round_event/shuttle_loa... (/datum/round_event/shuttle_loan)
call stack:
/datum/round_event/shuttle_loa... (/datum/round_event/shuttle_loan): announce(1)
/datum/round_event/falsealarm (/datum/round_event/falsealarm): announce(0)
/datum/round_event/falsealarm (/datum/round_event/falsealarm): process(2)
Events (/datum/controller/subsystem/events): fire(0)
Events (/datum/controller/subsystem/events): ignite(0)
Master (/datum/controller/master): RunQueue()
Master (/datum/controller/master): Loop(2)
Master (/datum/controller/master): StartProcessing(0)
```

2024-06-09 14:39:59 +01:00

..

shuttle_loan_datum.dm

…

shuttle_loan_event.dm

Fixes fake announcements for the shuttle loan event (#83801)

2024-06-09 14:39:59 +01:00

shuttle_loan_items.dm

…