This adds a checkbox in the print dialog to
make it possible to select whether or not to scale the printed
document to the printable area when printing.
QPrinter::setFullPage() is used which makes the print margins
to be ignored "automatically" in case of the QPrinter based approach
(e.g. "Force rasterization" option enabled).
For the case where FilePrinter is used, the margin options
are (not) passed based on the value that was set.
BUG: 336617