Scroll bar position not updated correctly on larger files
This is caused by an integer overflow at https://gitlab.com/FreeDOS/base/htmlhelp/-/blob/master/SOURCE/HTMLHELP/HELP_HTM.C#L518
This is caused by an integer overflow at https://gitlab.com/FreeDOS/base/htmlhelp/-/blob/master/SOURCE/HTMLHELP/HELP_HTM.C#L518