Updated conditions for Deselect and Unhide

Seenginx.Models/ConfigFile.cs

@@ -18,8 +18,8 @@ namespace Seenginx.Models
 		public bool CanBeDeleted { get; set; } = true;
 
 		public void Hide() { IsVisible = "is-hidden"; }
-		public void Unhide() { IsVisible = string.Empty; }
+		public void Unhide() { IsVisible = null; }
 		public void Select() { IsSelected = "isSelected"; }
-		public void Deselect() { IsSelected = string.Empty; }
+		public void Deselect() { IsSelected = null; }
 	}
 }

Seenginx/Components/FilesWithEditor.razor.cs

@@ -104,7 +104,7 @@ namespace Seenginx.Components
 
 		protected async Task OnFileCloseClick(MouseEventArgs e)
 		{
-			Files.ForEach(f => f.Deselect());
+			Files.ForEach(f => { if (f.IsSelected != null) f.Deselect(); });
 			SelectedFile = null;
 			await JsRuntime.InvokeVoidAsync("ClearEditor");
 			IsDraftMode = false;