Keyboard Focus Validation
可执行 target：
editor_ui_input_keyboard_focus_validation
运行：
build\tests\UI\Editor\integration\input\keyboard_focus\Debug\XCUIEditorInputKeyboardFocusValidation.exe
检查点：
- 按
Tab，焦点依次切换三个按钮 - 按
Shift+Tab，焦点反向切换 - 按
Enter或Space，当前focus按钮进入active - 松开按键后，
active清空