fix(types): fix return type in themes list (#82)

Author: rubentypeform

src/themes.ts

@@ -36,7 +36,7 @@ export class Themes {
   public list(args?: {
     page?: number
     pageSize?: number
-  }): Promise<Typeform.Theme[]> {
+  }): Promise<Typeform.API.Themes.List> {
     const { page, pageSize } = args || { page: null, pageSize: null }
 
     return this._http.request({

src/typeform-types.ts

@@ -94,6 +94,13 @@ export namespace Typeform {
         items: Response[]
       }
     }
+    export namespace Themes {
+      export interface List {
+        total_items: number
+        page_count: number
+        items: Theme[]
+      }
+    }
     export namespace Webhooks {
       export interface List {
         items: Webhook[]