Don't print newline after image in library

[Nogesma]

I'm trying to use this library to output images in kitty between text, but there's a newline added to the output in the send_graphics_command function (line 20). Would it be possible to remove it, or at least move it to the cli part?

Thanks

[emsquid]

I'm going to put an option to not use newline, I think it should work the way you want :)