Add the --force-device-scale-factor parameter

[dDostalker]

On Linux servers, there may sometimes be a situation where the DPI (dots per inch) is too low. I added this parameter while ensuring that it wouldn't affect the previous version of the code as much as possible. This parameter can be adjusted accordingly.

 hti = Html2Image(
        browser=browser,
        output_path=OUTPUT_PATH,
        disable_logging=True,
        force_device_scale_factor=2,
    )

Perhaps I should shorten the name of this parameter.