make description fields optional in model

Author: Saurabhkmr98

src/models/Page.ts

@@ -7,10 +7,10 @@ import { BaseModel } from "./common";
 export interface Page extends BaseModel {
   // Basic page fields - these will be updated with proper types
   name: string;
-  description_html: string;
-  description_binary: string;
-  description: string;
-  description_stripped: string;
+  description_html?: string;
+  description_binary?: string;
+  description?: string;
+  description_stripped?: string;
   created_by: string;
   updated_by?: string;
   // Additional fields will be added after API verification