Atomize model classes

software/src/data/models/acts/concertModel.ts

@@ -1,24 +1,6 @@
-import { LocationModel } from "./../locations/locationModel"
-import { BandModel } from "./bandModel"
-import { EventModel } from "./eventModel"
-
 export class ConcertModel {
-  id: number = 0
+  id: number = -1
   inStock: number = 0
   date: string = ""
   price: number = 0
-  location: LocationModel = new LocationModel()
-  event: {
-    id: number
-    name: string
-    offered: boolean
-    image: string
-    band: BandModel
-  } = {
-    id: 0,
-    name: "",
-    offered: true,
-    image: "",
-    band: new BandModel()
-  }
 }