Make compatbile with the Arms Reach module

src/features/toggle_secret_door.js

@@ -2,7 +2,8 @@ import {settingsKey} from "../settings.js"
 
 // Toggles between normal and secret doors
 export function onDoorLeftClick(event) {
-	if (game.settings.get(settingsKey, "toggleSecretDoors") && event.data.originalEvent.ctrlKey && game.user.isGM) {
+	// We don't trust the event to be filled with the expected data for compatibilty with arms reach (which passes a broken event)
+	if (game.settings.get(settingsKey, "toggleSecretDoors") && event.data?.originalEvent?.ctrlKey && game.user.isGM) {
 		const types = CONST.WALL_DOOR_TYPES
 		const newtype = this.wall.data.door === types.DOOR ? types.SECRET : types.DOOR
 		this.wall.update({door: newtype})