refactor: docs and styling

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

src/models/collection.ts

@@ -2,9 +2,17 @@
  * Class model for Collection Interface
  */
 
-import type { CollectionInterface, CollectionModelInterface, CollectionPropertiesInterface, CollectionPropertiesModelInterface } from "@/types/collection";
+import type {
+    CollectionInterface,
+    CollectionModelInterface,
+    CollectionPropertiesInterface,
+    CollectionPropertiesModelInterface
+} from "@/types/collection";
 import { clonePlain } from './clone-plain';
-import type { CollectionIdentifier, ServiceIdentifier } from "@/services";
+import type {
+    CollectionIdentifier,
+    ServiceIdentifier
+} from "@/services";
 
 export class CollectionObject implements CollectionModelInterface {
 
@@ -16,9 +24,9 @@ export class CollectionObject implements CollectionModelInterface {
             '@type': 'mail:collection',
             version: 1,
             provider: '',
-            service: '',
-            collection: null,
-            identifier: '',
+            service: '' as ServiceIdentifier,
+            collection: null as CollectionIdentifier | null,
+            identifier: '' as CollectionIdentifier,
             properties: {'@type': 'mail:folder', label: ''},
         };
     }

src/models/entity.ts

@@ -19,8 +19,8 @@ export class EntityObject implements EntityModelInterface {
             version: 1,
             provider: '',
             service: '',
-            collection: null,
-            identifier: null,
+            collection: '' as CollectionIdentifier,
+            identifier: '' as EntityIdentifier,
             signature: null,
             created: null,
             modified: null,