clear install info

src/SharpIDE.Godot/Features/Nuget/NugetPackageDetails.cs

@@ -83,6 +83,10 @@ public partial class NugetPackageDetails : VBoxContainer
 		await this.InvokeAsync(() =>
 		{
 			var scenes = _projectsVBoxContainer.GetChildren().OfType<PackageDetailsProjectEntry>().ToList();
+			if (projectPackageReferences.Count is 0)
+			{
+				scenes.ForEach(s => s.ClearInstallInfo());
+			}
 			foreach (var projectPackageReference in projectPackageReferences)
 			{
 				var scene = scenes.Single(s => s.ProjectModel == projectPackageReference.Project);

src/SharpIDE.Godot/Features/Nuget/PackageDetailsProjectEntry.cs

@@ -25,4 +25,10 @@ public partial class PackageDetailsProjectEntry : MarginContainer
         _projectNameLabel.Text = ProjectModel.Name;
         _installedVersionLabel.Text = IsTransitive ? $"({InstalledVersion?.ToNormalizedString()})" : InstalledVersion?.ToNormalizedString();
     }
+    
+    public void ClearInstallInfo()
+    {
+        _installedVersionLabel.Text = string.Empty;
+        InstalledVersion = null;
+    }
 }