feat: implement attachement preview

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

src/stores/entitiesStore.ts

@@ -10,6 +10,7 @@ import type {
   EntityBlobSelector,
   EntityBlobsResponse,
   EntityDownloadRequest,
+  EntityPreviewRequest,
   EntityTransmitRequest,
   EntityTransmitResponse,
 } from '../types/entity'
@@ -518,6 +519,10 @@ export const useEntitiesStore = defineStore('mailEntitiesStore', () => {
     }
   }
 
+  async function preview(request: EntityPreviewRequest): Promise<Blob> {
+    return await entityService.preview(request)
+  }
+
   // Return public API
   return {
     // State (readonly)
@@ -540,6 +545,7 @@ export const useEntitiesStore = defineStore('mailEntitiesStore', () => {
     move,
     transmit,
     download,
+    preview,
     blobs,
   }
 })