FIX: Broken "Listen" button in Input actions editor window with Unity dark skin (ISXB-536) (#1694)

* typo fix for ToolbarSearchTextField

* added changelog

Author: ritamerkl

Packages/com.unity.inputsystem/CHANGELOG.md

@@ -16,6 +16,7 @@ however, it has to be formatted properly to pass verification tests.
 ### Fixed
 - Fixed UI clicks not registering when OS provides multiple input sources for the same event, e.g. on Samsung Dex (case ISX-1416, ISXB-342).
 - Fixed unstable integration test `Integration_CanSendAndReceiveEvents` by ignoring application focus on integration tests. (case ISX-1381)
+- Fixed broken "Listen" button in Input actions editor window with Unity dark skin (case ISXB-536).
 
 ## [1.6.1] - 2023-05-26
 

Packages/com.unity.inputsystem/InputSystem/Editor/Internal/AdvancedDropdown/AdvancedDropdownGUI.cs

@@ -10,7 +10,7 @@ internal class AdvancedDropdownGUI
     {
         private static class Styles
         {
-            public static readonly GUIStyle toolbarSearchField = "ToolbarSeachTextField";
+            public static readonly GUIStyle toolbarSearchField = "ToolbarSearchTextField";
             public static readonly GUIStyle itemStyle = new GUIStyle("PR Label")
                 .WithAlignment(TextAnchor.MiddleLeft)
                 .WithPadding(new RectOffset())