Prevent unnecessarily downloading subscribed/legacy workshop items

Fix gitignore

.gitignore

@@ -5,3 +5,6 @@ riderModule.iml
 /_ReSharper.Caches/
 /.idea/.idea.CringeLauncher/.idea
 /.vs
+/CringeLauncher/Bin64
+/CringeLauncher/pub
+*.user

PluginLoader/SteamAPI.cs

@@ -45,8 +45,9 @@ public static class SteamAPI
                 "Download finished for {Id} with {State}", t.m_nPublishedFileId.m_PublishedFileId, t.m_eResult);
         });
 
+        //items could have other flags besides installed
         var toDownload = ids.Where(b =>
-            (EItemState)SteamUGC.GetItemState(new(b)) != EItemState.k_EItemStateInstalled).ToArray();
+            ((EItemState)SteamUGC.GetItemState(new(b)) & EItemState.k_EItemStateInstalled) == 0).ToArray();
         foreach (var id in toDownload)
         {
             LogFile.Log.Info("Updating workshop item {Id}", id);