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

src/Utils/history.ts

@@ -7,6 +7,7 @@ import { WAMessageStubType } from '../Types'
 import { toNumber } from './generics'
 import { normalizeMessageContent } from './messages'
 import { downloadContentFromMessage } from './messages-media'
+import { decodeAndHydrate } from './proto-utils'
 
 const inflatePromise = promisify(inflate)
 
@@ -22,7 +23,7 @@ export const downloadHistory = async (msg: proto.Message.IHistorySyncNotificatio
 	// decompress buffer
 	buffer = await inflatePromise(buffer)
 
-	const syncData = proto.HistorySync.decode(buffer)
+	const syncData = decodeAndHydrate(proto.HistorySync, buffer)
 	return syncData
 }