Adds Georgian (ქართული, code ka, system tags ka / ka-GE / ka_GE) with
complete plain and formats catalogs, the Edit > Language command and the
Settings choice. Sentence-cased messages go through i18n::upper_first,
which leaves Georgian letters alone (upper-casing Mkhedruli would turn it
into Mtavruli). The Settings language choices wrap now that eleven
endonyms no longer fit on one line, and the face-model Remove button goes
through tr().
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YMTAbGNRxnMEzRvYnQGphF
