Pause Menu Fixes

[1A3Dev]

• Fixed the player volume sliders resetting everytime someone joins/leaves.
• Fixed the host seeing the button to kick themself.
• Fixed rare race condition where PopulateQuickMenu can run before quickMenuScrollInstance is set.

  NullReferenceException: Object reference not set to an instance of an object
  Stack trace:
  MoreCompany.QuickmenuVisualInjectPatch.PopulateQuickMenu (QuickMenuManager __instance) (at D:/VisualStudioProjects/MoreCompany/MoreCompany/HudPatches.cs:198)
  MoreCompany.AddUserPlayerListPatch.Prefix (QuickMenuManager __instance, System.UInt64 steamId, System.String playerName, System.Int32 playerObjectId) (at D:/VisualStudioProjects/MoreCompany/MoreCompany/HudPatches.cs:134)
  (wrapper dynamic-method) QuickMenuManager.DMD<QuickMenuManager::AddUserToPlayerList>(QuickMenuManager,ulong,string,int)
  (wrapper dynamic-method) GameNetcodeStuff.PlayerControllerB.DMD<GameNetcodeStuff.PlayerControllerB::SendNewPlayerValuesClientRpc>(GameNetcodeStuff.PlayerControllerB,ulong[])
  GameNetcodeStuff.PlayerControllerB.__rpc_handler_956616685 (Unity.Netcode.NetworkBehaviour target, Unity.Netcode.FastBufferReader reader, Unity.Netcode.__RpcParams rpcParams) (at <255c0877f9414c3aa6f1fe5079ac13f3>:0)
  Unity.Netcode.RpcMessageHelpers.Handle (Unity.Netcode.NetworkContext& context, Unity.Netcode.RpcMetadata& metadata, Unity.Netcode.FastBufferReader& payload, Unity.Netcode.__RpcParams& rpcParams) (at <895801699cfc4b4ab52267f31e2a4998>:0)