🚚(frontend) move toBase64

We will need toBase64 in different features,
better to move it to "doc-management".

src/frontend/apps/impress/src/features/docs/doc-editor/hook/useSaveDoc.tsx

@@ -2,12 +2,10 @@ import { useRouter } from 'next/router';
 import { useCallback, useEffect, useRef, useState } from 'react';
 import * as Y from 'yjs';
 
-import { useUpdateDoc } from '@/features/docs/doc-management/';
+import { toBase64, useUpdateDoc } from '@/features/docs/doc-management/';
 import { KEY_LIST_DOC_VERSIONS } from '@/features/docs/doc-versioning';
 import { isFirefox } from '@/utils/userAgent';
 
-import { toBase64 } from '../utils';
-
 const useSaveDoc = (docId: string, doc: Y.Doc, canSave: boolean) => {
   const { mutate: updateDoc } = useUpdateDoc({
     listInvalideQueries: [KEY_LIST_DOC_VERSIONS],

src/frontend/apps/impress/src/features/docs/doc-editor/utils.ts

@@ -22,6 +22,3 @@ function hslToHex(h: number, s: number, l: number) {
   };
   return `#${f(0)}${f(8)}${f(4)}`;
 }
-
-export const toBase64 = (str: Uint8Array) =>
-  Buffer.from(str).toString('base64');

src/frontend/apps/impress/src/features/docs/doc-management/utils.ts

@@ -12,6 +12,9 @@ export const currentDocRole = (abilities: Doc['abilities']): Role => {
         : Role.READER;
 };
 
+export const toBase64 = (str: Uint8Array) =>
+  Buffer.from(str).toString('base64');
+
 export const base64ToYDoc = (base64: string) => {
   const uint8Array = Buffer.from(base64, 'base64');
   const ydoc = new Y.Doc();