chore: fix few types errors

src/core/types/types.js

@@ -89,7 +89,7 @@
  * @typedef {object} AccountData
  * @property {string} consentId
  * @property {string} inseeCode
- * @property {string} offPeakHours
+ * @property {string | undefined} offPeakHours
  */
 
 /**

src/requests/cozy.js

@@ -34,7 +34,7 @@ async function saveAccountData(accountId, accountData) {
 /**
  * Return account
  * @param {string} accountId
- * @returns {Account}
+ * @returns {Promise<Account>}
  */
 async function getAccount(accountId) {
   log('info', `getAccount: ${accountId}`)