chore: Set the initial input device type to mouse in between tests

src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UnitTest/UnitTestsControl.cs

@@ -1047,10 +1047,15 @@ private static void CloseRemainingPopups()
 		private static void ResetLastInputDeviceType()
 		{
 			// Some tests inject keyboard input, which can then mean that subsequent tests will display
-			// system focus visuals which are unexpected. This resets the last input device type to touch.
+			// system focus visuals which are unexpected. This resets the last input device type to mouse.
+			// Mouse is to stay in line with WinUI integration tests, as some rely on the fact that on
+			// initial focus of a TextBox the last input device type is not touch (this device type does not
+			// select all text on initial focus, only on second tap of the input).
+			// If this is changed ComboBoxIntegrationTests.ValidateTextSubmittedHandledProperty will probably
+			// start to fail for example.
 			if (TestServices.WindowHelper.XamlRoot?.VisualTree?.ContentRoot?.InputManager is { } inputManager)
 			{
-				inputManager.LastInputDeviceType = Xaml.Input.InputDeviceType.Touch;
+				inputManager.LastInputDeviceType = Xaml.Input.InputDeviceType.Mouse;
 			}
 		}
 #endif

src/Uno.UI.RuntimeTests/IntegrationTests/dxaml/controls/combobox/ComboBoxIntegrationTests.cs

@@ -4614,7 +4614,6 @@ private async Task EnsureEditableTextBoxHasFocus(ComboBox comboBox)
 	{
 		TextBox textBox = null;
 		await RunOnUIThread(() =>
-
 			{
 				textBox = (TextBox)(TreeHelper.GetVisualChildByName(comboBox, "EditableText"));
 				VERIFY_IS_NOT_NULL(textBox);