Translate the five new chat strings — chat_parts_label, chat_txns_label,
chat_parts_explain, chat_parts_explain_multi, chat_receiving_large — into de, es,
fr, ja, ko, pt, ru, zh (res/lang/*.json, 2504 → 2509 keys each), additively and
matching each file's existing terminology for transaction / fee / message. The
transaction abbreviation uses each locale's natural short form (Tx / tx / 件 /
건 / транз. / 笔).
Rebuilt the CJK subset font (NotoSansCJK-Subset.ttf, 2111 → 2115 glyphs) for the
four new glyphs the translations introduce (产 割 拆 in zh, 뉩 in ko) so they
render instead of tofu.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>