code_style: remove all IDE warnings

src/ViewModels/RevisionFileTreeNode.cs

@@ -0,0 +1,32 @@
+using System.Collections.Generic;
+using System.IO;
+
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace SourceGit.ViewModels
+{
+    public class RevisionFileTreeNode : ObservableObject
+    {
+        public Models.Object Backend { get; set; } = null;
+        public int Depth { get; set; } = 0;
+        public List<RevisionFileTreeNode> Children { get; set; } = new List<RevisionFileTreeNode>();
+
+        public string Name
+        {
+            get => Backend == null ? string.Empty : Path.GetFileName(Backend.Path);
+        }
+
+        public bool IsFolder
+        {
+            get => Backend != null && Backend.Type == Models.ObjectType.Tree;
+        }
+
+        public bool IsExpanded
+        {
+            get => _isExpanded;
+            set => SetProperty(ref _isExpanded, value);
+        }
+
+        private bool _isExpanded = false;
+    }
+}