Eisvogel (Version 3.5.0)

• fix: change SEDOPTION in release.sh to index (#409, #457, SandyJackson)
• feat: add example beamer-theme-moloch
  • add an example for the LaTeX Beamer theme Moloch (https://github.com/jolars/moloch, https://moloch.ink/)
• chore: migrate from sourcesanspro to sourcesans
  • remove XeLaTeX workaround for straight quotes (#454, #79)
  • remove if else construct for XeLaTeX workaround
• feat: allow users to customize paragraph indentation (#453, Jack77793)