Version 4 or 5?

[MartkCz]

• Create invoice pdf from svg (new repository for svg to pdf)
• Greyscale
• Remove calculators and formatters (fixed string values)
• Simplify data classes
• PHP 8.0
• Replace template

@f3l1x release 3.1.0 or 4.0.0 for current version

[f3l1x]

I would release v3.1.0. Will do. :-)