### Godot version

v4.0.3.stable.official [5222a99f5]

### System information

Windows 11, AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx     2.10 GHz

### Issue description

  The request_attention () function on Windows only flashes the taskbar, but what if the taskbar is hidden ?  In display_server_windows.cpp, FLASHW_TRAY is used, when it might be more appropriate to use FLASHW_ALL which flashes both the caption and the tray.

### Steps to reproduce

N/A

### Minimal reproduction project

N/A
_THREAD_SAFE_METHOD_
	if (!windows.has(MAIN_WINDOW_ID)) {
		return String();
	}
	String ret;
	if (!OpenClipboard(windows[MAIN_WINDOW_ID].hWnd)) {
		ERR_FAIL_V_MSG("", "Unable to open clipboard.");
	}
	if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
		HGLOBAL mem = GetClipboardData(CF_UNICODETEXT);
		if (mem != nullptr) {
			LPWSTR ptr = (LPWSTR)GlobalLock(mem);
			if (ptr != nullptr) {
				ret = String::utf16((const char16_t *)ptr);
				GlobalUnlock(mem);