Conflicts:
- README.md, docs/localization.md: language lists keep every language, Finnish appended
- assets/ATTRIBUTION.md: union of rows
- crates/ui-egui/src/i18n.rs, crates/ui-egui/src/menus.rs: language table and commands keep sv and fi
- crates/ui-egui/src/panels/keyword_list.rs: code list gains fi; Locale::ALL.len() is 16
- docs/localization-parity.md: header keeps the newer date and both changes; revision rows are the union