Add deconstruction to FileTreeNode for cleaner tests

Updated FileTreeNode class to include Deconstruct method, enabling more readable testing of path and value. Changes have been applied to both Absolute and Relative FileTreeTests. Deconstruction simplifies asserting equalities and improves overall code readability in tests.

src/NexusMods.Paths/FileTree/FileTreeNode.cs

@@ -189,6 +189,18 @@ public static FileTreeNode<TPath, TValue> CreateTree(IEnumerable<KeyValuePair<TP
         return rootNode;
     }
 
+
+    /// <summary>
+    /// Deconstructs the node into its path and value.
+    /// </summary>
+    /// <param name="path"></param>
+    /// <param name="value"></param>
+    public void Deconstruct(out TPath path, out TValue? value)
+    {
+        path = Path;
+        value = Value;
+    }
+
     /// <summary>
     /// Populates the tree with the given collection of file entries.
     /// </summary>

tests/NexusMods.Paths.Tests/FileTree/AbsoluteFileTreeTests.cs

@@ -28,8 +28,9 @@ public void Test_FindNode(string path, bool isUnix, bool found, int value)
         if (found)
         {
             node.Should().NotBeNull();
-            node!.Path.Should().Be(CreateAbsPath(path, isUnix));
-            node!.Value.Should().Be(value);
+            var (testPath, testValue) = node!;
+            testPath.Should().Be(CreateAbsPath(path, isUnix));
+            testValue.Should().Be(value);
         }
         else
         {

tests/NexusMods.Paths.Tests/FileTree/RelativeFileTreeTests.cs

@@ -19,8 +19,9 @@ public void Test_FindNode(string path, bool found, int value)
         if (found)
         {
             node.Should().NotBeNull();
-            node!.Path.Should().Be((RelativePath)path);
-            node!.Value.Should().Be(value);
+            var (testPath, testValue) = node!;
+            testPath.Should().Be((RelativePath)path);
+            testValue.Should().Be(value);
         }
         else
         {