🏷️(frontend) adapt some types

Adapt some pad types.

src/frontend/apps/impress/src/features/pads/pad/types.tsx

@@ -17,9 +17,13 @@ export enum Role {
   OWNER = 'owner',
 }
 
+export type Base64 = string;
+
 export interface Pad {
   id: string;
   title: string;
+  content: Base64;
+  is_public: boolean;
   accesses: Access[];
   created_at: string;
   updated_at: string;

src/frontend/apps/impress/src/features/pads/pads-create/api/useCreatePad.tsx

@@ -3,10 +3,7 @@ import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { APIError, errorCauses, fetchAPI } from '@/api';
 import { KEY_LIST_PAD, Pad } from '@/features/pads';
 
-type CreatePadParam = {
-  title: string;
-  is_public: boolean;
-};
+type CreatePadParam = Pick<Pad, 'title' | 'is_public'>;
 
 export const createPad = async ({
   title,