[PM-8004] Move Unmanaged collection logic out of component for better reuse (#4108)

* Updated sprocs to return unmanaged collection column, updated reponse to return to return unmanaged

* reformatted sproc

src/Core/Models/Data/CollectionAdminDetails.cs

@@ -14,4 +14,9 @@ public class CollectionAdminDetails : CollectionDetails
     /// Flag for whether the user has been explicitly assigned to the collection either directly or through a group.
     /// </summary>
     public bool Assigned { get; set; }
+
+    /// <summary>
+    /// Flag for whether a collection is managed by an active user or group.
+    /// </summary>
+    public bool Unmanaged { get; set; }
 }