3.0.0-Alpha.3

• Added UIMode, and IsSteamDeck to LogOnDetails.
• Added SteamClient.WaitForCallbackAsync and CallbackManager.RunWaitCallbackAsync.

BREAKING CHANGES

• SteamClient callback queue is now backed by BufferBlock:
  • FreeLastCallback and GetAllCallbacks have been removed.
  • Calling GetCallback and WaitForCallback now always dequeues a callback, there is no more peek and "freeLast".
• DepotManifest.ChunkData.Checksum is now a uint instead of byte[4].
• Removed SteamTrading handler.
• Removed CryptoHelper.GenerateRandomBlock, use RandomNumberGenerator.GetBytes instead.