docs: remove obsolete duplicate LHAPDF test description

docs: remove obsolete duplicate LHAPDF test description

fix: consolidate merged test prerequisites without dropping targets

fix: consolidate merged test prerequisites without dropping targets

Merge commit 'e5507f0' into fix/lhef-integrate-461

fix: resolve LaTeX diagram body paths for standalone and paper builds

Merge fix/pdf-menu

fix: make PDF menu dispatch and cancellation deterministic

Merge fix/latex-wrapper-paths

fix: resolve LaTeX diagram body paths for standalone and paper builds

Merge commit 'cb4b381' into fix/lhef-integrate-461

fix: make PDF menu dispatch and cancellation deterministic

fix: resolve LaTeX diagram body paths for standalone and paper builds

fix: make PDF menu dispatch and cancellation deterministic

Merge commit '3c2ad16' into fix/lhef-integrate-461

fix: use the selected EPA beam mass in event headers

Merge fix/epa-info-mass

fix: use the selected EPA beam mass in event headers

fix: use the selected EPA beam mass in event headers

fix: use zero-based EPA metadata index

fix: define PDF menu dispatch and make the first dataset selectable