Motivation

This adds Korean (ko_KR) translation support — to help Korean-speaking users use this open-source project more comfortably in their own language.

한국 사람들의 오픈소스 이용에 도움이 되게 하기 위해서 한글화 작업을 하였습니다.

Changes

• Register ko_KR (한국어) in src/main/i18n/language.ts, inserted alphabetically between ja_JP and pl_PL
• Add src/main/i18n/locales/ko_KR/{ui,menu,messages,preferences,devtools}.json — 924 keys total, full parity with en_US

Testing

• node scripts/i18n/check-locale-parity.mjs — ko_KR reports 0 missing keys against en_US (all other flagged locales in the output are pre-existing gaps unrelated to this change)
• Verified every en_US interpolation placeholder (e.g. {{count}}) has a matching placeholder in the corresponding ko_KR key, with no mismatches across all 924 keys
• folderMeta_one/_other and importedSnippets_one/_other intentionally use identical Korean text: Korean's CLDR plural category set is {other} only, so _one is never selected at runtime for ko, but keeping both keys satisfies the parity checker's key-structure comparison against en_US