disable update on debug builds

Directory.Build.props

@@ -16,6 +16,10 @@
     <NoWarn>1591</NoWarn>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <DefineConstants>$(DefineConstants);DISABLE_UPDATE</DefineConstants>
+  </PropertyGroup>
+
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <DebugSymbols>False</DebugSymbols>
     <DebugType>None</DebugType>

ModpackUpdater.Apps/AppUpdates.cs

@@ -16,7 +16,9 @@ public class AppUpdates(string updateUrl, Window mainWindow)
     
     public async Task UpdateApp()
     {
-#if !DISABLE_UPDATE
+#if DISABLE_UPDATE
+        await Task.CompletedTask;
+#else
         try
         {
             await UpdateAppCore();