Fixed collection prep order

module/documents/collections/_module.mjs

@@ -0,0 +1 @@
+export { default as DhActorCollection } from './actorCollection.mjs';

module/documents/collections/actorCollection.mjs

@@ -0,0 +1,14 @@
+export default class DhActorCollection extends foundry.documents.collections.Actors {
+    /** Ensure companions are initialized after all other subtypes. */
+    _initialize() {
+        super._initialize();
+        const companions = [];
+        for (const actor of this.values()) {
+            if (actor.type === 'companion') companions.push(actor);
+        }
+        for (const actor of companions) {
+            this.delete(actor.id);
+            this.set(actor.id, actor);
+        }
+    }
+}