Merge in FRAG/50ohm.de from feature/download to main
* commit '62933df8312964665e00161d3a34e78dcc6fa465': (25 commits)
refactor: ignore almost all content of data
fix: render margins correctly
feat: allow to skip latex builds
feat: improve configuration loader
feature: add build assets in build.py
fix: transitions between chapters and sections
refactor: removed comments
feature: add page rendering with next and previous
refactor: put margin in jina template
feature: assets migrated from old repro
feature: first build process
fix: bug in metadata
refactor: reorganized code
feature: added code to provide first data download
feature: added latex template to build pictures
refactor: .gitignore updated
feature: fonts added
feature: download fotos added
feature: add file download
refactor: reorganized the downloads
...