refactor: minor code cleanup

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

src/models/collection.ts

@@ -9,11 +9,11 @@ import type {
     CollectionPropertiesInterface,
     CollectionPropertiesModelInterface
 } from "@/types/collection";
-import { clonePlain } from './clone-plain';
 import type {
     CollectionIdentifier,
     ServiceIdentifier
 } from "@/types/common";
+import { clonePlain } from './clone-plain';
 
 export class CollectionObject implements CollectionModelInterface {
 
@@ -28,7 +28,7 @@ export class CollectionObject implements CollectionModelInterface {
             service: '' as ServiceIdentifier,
             collection: null as CollectionIdentifier | null,
             identifier: '' as CollectionIdentifier,
-            properties: { '@type': 'people:addressbook', content: [], label: '', description: null, rank: null, visibility: null, color: null },
+            properties: new CollectionPropertiesObject().toJson(),
         };
     }
 
@@ -40,12 +40,8 @@ export class CollectionObject implements CollectionModelInterface {
 
     toJson(): CollectionInterface {
         const json = this._properties
-            ? {
-                ...this._data,
-                properties: this._properties.toJson(),
-            }
+            ? { ...this._data, properties: this._properties.toJson() }
             : this._data;
-
         return clonePlain(json);
     }
 
@@ -83,6 +79,8 @@ export class CollectionObject implements CollectionModelInterface {
         return this._data.modified;
     }
 
+    /** Mutable Properties */
+
     get properties(): CollectionPropertiesObject {
         if (this._properties) {
             return this._properties;