Add showing Visject context menu group when it's title has a filter match

Source/Editor/Surface/ContextMenu/VisjectCMGroup.cs

@@ -2,6 +2,7 @@
 
 using System;
 using FlaxEditor.Surface.Elements;
+using FlaxEditor.Utilities;
 using FlaxEngine;
 using FlaxEngine.GUI;
 
@@ -86,6 +87,19 @@ namespace FlaxEditor.Surface.ContextMenu
                 }
             }
 
+            // Update header title
+            if (QueryFilterHelper.Match(filterText, HeaderText))
+            {
+                for (int i = 0; i < _children.Count; i++)
+                {
+                    if (_children[i] is VisjectCMItem item)
+                    {
+                        item.Visible = true;
+                    }
+                }
+                isAnyVisible = true;
+            }
+
             // Update itself
             if (isAnyVisible)
             {