Fix playlist creation and removal

MediaBrowser.Model/Entities/IHasShares.cs

@@ -0,0 +1,12 @@
+namespace MediaBrowser.Model.Entities;
+
+/// <summary>
+/// Interface for access to shares.
+/// </summary>
+public interface IHasShares
+{
+    /// <summary>
+    /// Gets or sets the shares.
+    /// </summary>
+    Share[] Shares { get; set; }
+}

MediaBrowser.Model/Entities/Share.cs

@@ -0,0 +1,17 @@
+namespace MediaBrowser.Model.Entities;
+
+/// <summary>
+/// Class to hold data on sharing permissions.
+/// </summary>
+public class Share
+{
+    /// <summary>
+    /// Gets or sets the user id.
+    /// </summary>
+    public string? UserId { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether the user has edit permissions.
+    /// </summary>
+    public bool CanEdit { get; set; }
+}