This change removes unnecessary dependencies and optimizes the PDF build
process, enhancing maintainability and reducing potential errors.
- Removed `python3-pypandoc` from Dockerfile to minimize dependency
footprint.
- Replaced `texlive-xetex` with `texlive` in Dockerfile for broader TeX
support.
- Introduced `subprocess` in `build_pdf.py` to replace `pypandoc`,
improving process control.
- Added `run_process_with_params` function to handle command execution,
increasing code modularity and error handling.
- Created `build_pdf.old.py` as a backup of the original script for
reference.
Signed-off-by: Glenn Y. Rolland <glenux@glenux.net>
