Add file_drops parameter

[tsing-xl]

In pyglet, the pyglet.window.Window has a parameter called file_drops. Sometimes I wonder if it would be better to add this parameter to arcade.Window.Like this:

In application.py, line 143:

def __init__(
        self,
        ...
        file_drops: bool | None = False, 
)

And in line 230:

super().__init__(
                width=width,
                ...
                file_drops=file_drops, 
)

Thank you very much for being willing to adopt my suggestion!