fix: duplicates for windows64 & update postbuild copies

Minecraft.Client/Common/Buildsteps/Windows64-postbuild.ps1

@@ -26,7 +26,7 @@ $folderCopies = @(
     @{ Source = "Windows64Media";  		Dest = "Windows64Media" },
 	@{ Source = "Windows64Media\Sound";	Dest = "Windows64Media\Sound" },
 	#@{ Source = "PSVita\Tutorial"; 	Dest = "Windows64Media\Tutorial" }, # str1k3r - doesnt even work bru
-	@{ Source = Join-Path $PSScriptRoot "Contents\Windows64\redist64"; Dest = "Windows64\redist64" }
+	@{ Source = "Windows64\Miles\lib\redist64"; Dest = "Windows64\redist64" }
 )
 
 foreach ($copy in $folderCopies) {
@@ -46,8 +46,8 @@ foreach ($copy in $folderCopies) {
 
 $fileCopies = @(
     @{ Source = Join-Path $ProjectDir   "Windows64\4JLibs\4J_Input\Windows64\vendor\SDL\lib\x64\SDL3.dll"; Dest = "SDL3.dll" },
-	@{ Source = Join-Path $PSScriptRoot "Contents\Windows64\iggy_w64.dll"; Dest = "iggy_w64.dll" },
-	@{ Source = Join-Path $PSScriptRoot "Contents\Windows64\mss64.dll"; Dest = "mss64.dll" }
+	@{ Source = Join-Path $PSScriptRoot "Contents\Windows64\mss64.dll"; Dest = "mss64.dll" },
+	@{ Source = "Windows64\redist64\iggy_w64.dll"; Dest = "iggy_w64.dll" }
 )
 
 foreach ($copy in $fileCopies) {