- Russian had no "Person": the option showed in English (it reaches
`tr` through a variable). A test now checks that every label the
Keyword List passes that way is in every language's file.
- The merge confirmation's button said "Merge", which some languages
translate as merging photos (HDR, panorama): it says "Merge Keywords".
- Traditional Chinese uses 匯出 for Export, as everywhere else in the
file, not 轉存; "Export Containing Keywords" means the parent
keywords in both Chinese files (上層 / 上级), not "included" ones.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>