refactor(db/models): change _id field in inbox schema to a reference field that points to the owning user

models/inbox.ts

@@ -8,16 +8,18 @@ import mongoose, {
 import SequenceFactory from "mongoose-sequence";
 
 import { IPrivMsg } from "./privMsg";
+import { IUser } from "./user";
 export interface IInbox {
-	_id: number;
+	owningUser: PopulatedDoc<IUser & Document>;
 	saved: PopulatedDoc<IPrivMsg & Document>[];
 	received: PopulatedDoc<IPrivMsg & Document>[];
 	sent: PopulatedDoc<IPrivMsg & Document>[];
 }
 
 const InboxSchema = new Schema<IInbox>({
-	_id: {
+	owningUser: {
 		type: Number,
+		ref: "User",
 	},
 	saved: [
 		{