Hiding of root folders

CinemaJellyfin/CinemaFilterFolder.cs

@@ -167,7 +167,8 @@ public abstract class CinemaFilterFolder : Folder
 		{
 			folder.ParentId = Guid.Empty;
 			folder.IsRoot = true;
-			CinemaHost.LibraryManager.RootFolder.AddVirtualChild(folder);
+			if (!CinemaHost.LibraryManager.RootFolder.VirtualChildren.Contains(folder))
+				CinemaHost.LibraryManager.RootFolder.AddVirtualChild(folder);
 		}
 		else
 		{

CinemaJellyfin/CinemaRootFolder.cs

@@ -18,6 +18,7 @@ namespace Jellyfin.Plugin.Cinema;
 /// </summary>
 public abstract class CinemaRootFolder : CinemaFilterFolder, ICollectionFolder
 {
+	private bool _hidden;
 
 	/// <summary>
 	/// Gets the item type for <see cref="ICollectionFolder"/>. Shall be kept in
@@ -25,12 +26,41 @@ public abstract class CinemaRootFolder : CinemaFilterFolder, ICollectionFolder
 	/// </summary>
 	public abstract CollectionType? CollectionType { get; }
 
-	public override bool IsHidden => Hide;
-	internal bool Hide { get; set; }
+	public override bool IsHidden => _hidden;
+	internal bool Hide
+	{
+		get => _hidden;
+		set
+		{
+			var a = CinemaHost.LibraryManager.RootFolder.VirtualChildren;
+			if (a.Contains(this) == (!value))
+				return;
+
+			if (value)
+			{
+				// Remove ourselves
+				var temp = new List<BaseItem>();
+				while (!a.IsEmpty)
+				{
+					if (!a.TryTake(out BaseItem? b))
+						continue;
+
+					if (b == this)
+						break;
+					temp.Add(b);
+				}
+				foreach (var i in temp)
+					a.Add(i);
+			}
+			else
+				// Add ourselves
+				a.Add(this);
+		}
+	}
 
 
 	/*
-		
+
 			public Task<DynamicImageResponse> GetChannelImage(ImageType type, CancellationToken cancellationToken)
 			{
 					if (type == ImageType.Primary)