fix(auth, ios): correct useUserAccessGroup JSDoc (#8543)

Author: wneel

packages/auth/lib/modular/index.d.ts

@@ -414,7 +414,7 @@ export function useDeviceLanguage(auth: Auth): void;
 export function validatePassword(auth: Auth, password: string): Promise<PasswordValidationStatus>;
 
 /**
- * Sets the current language to the default device/browser preference.
+ * Configures a shared user access group to sync auth state across multiple apps via the Keychain.
  *
  * @param auth - The Auth instance.
  * @param userAccessGroup - The user access group.

packages/auth/lib/modular/index.js

@@ -357,7 +357,7 @@ export function useDeviceLanguage(auth) {
 }
 
 /**
- * Sets the current language to the default device/browser preference.
+ * Configures a shared user access group to sync auth state across multiple apps via the Keychain.
  * @param {Auth} auth - The Auth instance.
  * @param {string} userAccessGroup - The user access group.
  * @returns {Promise<void>}