Fix: re-organize entity type conditional logic in gifting flow

- Add conditional checks for person vs project entity types when setting DID fields
- Simplify project ID assignment logic by removing redundant entity type checks
- Preserve existing recipient context when selecting givers in ContactGiftingView, especially when dealing with "Unnamed" entity

src/components/EntitySelectionStep.vue

@@ -261,12 +261,13 @@ export default class EntitySelectionStep extends Vue {
       giverProjectName: this.giver?.name || "",
       giverProjectImage: this.giver?.image || "",
       giverProjectHandleId: this.giver?.handleId || "",
-      giverDid: this.giver?.did || "",
+      giverDid: this.giverEntityType === "person" ? this.giver?.did || "" : "",
       recipientProjectId: this.toProjectId || "",
       recipientProjectName: this.receiver?.name || "",
       recipientProjectImage: this.receiver?.image || "",
       recipientProjectHandleId: this.receiver?.handleId || "",
-      recipientDid: this.receiver?.did || "",
+      recipientDid:
+        this.recipientEntityType === "person" ? this.receiver?.did || "" : "",
     };
   }