chore: Overall code cleanup

Update NuGet packages, fix version string in plist for macOS

src/Ryujinx.Cpu/IExecutionContext.cs

@@ -1,6 +1,5 @@
 using ARMeilleure.State;
 using System;
-using System.Threading;
 
 namespace Ryujinx.Cpu
 {

src/Ryujinx.Cpu/LightningJit/State/ExecutionContext.cs

@@ -1,4 +1,3 @@
-using ARMeilleure;
 using ARMeilleure.Memory;
 using ARMeilleure.State;
 using System;