Bug [#2489]. hex: Use monospace font for these file types
Thanks for the hint, much easier now.
Monospace font should be the default for hex files
doc: Complete the dependencies for PDF generation
doc: Remove unused file new.so, it is generated during build
cspell: Add pdfmark and related command names to the dictionary
doc: Explicitly set a consistent paper size (A4) for PDFs
doc: Display the PDF outline by default when opening the file