[Bug] Windows Support

[xbais]

Running Minimark on Windows 11 within Wezterm gives the following error :

C:\Users\my_user>minimark
Traceback (most recent call last):
  File "c:\users\my_user\appdata\local\programs\python\python38\lib\runpy.py", line 192, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\my_user\appdata\local\programs\python\python38\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\my_user\AppData\Local\Programs\Python\Python38\Scripts\minimark.exe\__main__.py", line 4, in <module>
  File "c:\users\my_user\appdata\local\programs\python\python38\lib\site-packages\minimark\__init__.py", line 22, in <module>
    from textual_image.widget import Image
  File "c:\users\my_user\appdata\local\programs\python\python38\lib\site-packages\textual_image\widget\__init__.py", line 5, in <module>
    from textual_image._terminal import get_cell_size
  File "c:\users\my_user\appdata\local\programs\python\python38\lib\site-packages\textual_image\_terminal.py", line 11, in <module>
    from textual_image._win32 import capture_mode, get_tiocgwinsz, read
  File "c:\users\my_user\appdata\local\programs\python\python38\lib\site-packages\textual_image\_win32.py", line 25, in <module>
    def read(fd: int, length: int, timeout: float | None = None) -> str:
TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'

Seems like there is an issue in textual_image library, it is unable to work well on windows.