The PR was rebased onto upstream main; its code commits are unchanged
(range-diff shows only ROADMAP lines moved into the new docs commit), so
next already carries them.
Conflicts: crates/ui-egui/src/{dialogs.rs,i18n.rs,i18n/it.rs,lib.rs}:
next's versions (the old PR code plus next's own dialogs, findFont and
numberingSection work). ROADMAP.md and docs/target-app-parity.md take the
PR's New Document entries.