fix: harden Protobuf Deserialization and Refactor Utilities (#1820)

* refactor: reorganize browser utility functions and improve buffer handling

* fix: harden protobuf deserialization and clean up code

* refactor: simplify data handling in GroupCipher and SenderKey classes

* fix: Ensure consistent Buffer hydration and remove redundant code

* refactor: update decodeAndHydrate calls to use proto types for improved type safety

README.md

@@ -333,6 +333,9 @@ sock.ev.on('messages.upsert', ({ messages }) => {
 > [!NOTE]
 > This example includes basic auth storage too
 
+> [!NOTE]
+> For reliable serialization of the authentication state, especially when storing as JSON, always use the BufferJSON utility.
+
 ```ts
 import makeWASocket, { DisconnectReason, useMultiFileAuthState } from '@whiskeysockets/baileys'
 import { Boom } from '@hapi/boom'