Translate leftover Korean and Serbian (Latin) language keys (#15292)

Six language keys had no translation in Korean or Serbian (Latin), so
those strings fell back to English on pages in those languages. The
values are machine translations, each checked by two independent AI
reviewers and not by a native speaker. Add them and drop the keys from
tests/unit/language-known-gaps.yml.

- ko: title-block-modified, the "Modified" label in the title block
- sr-Latn: code-links-title, launch-binder-title,
  launch-dev-container-title, listing-page-field-wordcount, and
  listing-page-words
- "Binder" and "Dev Container" stay untranslated as product names

Related to #14822

Author: cderv

news/changelog-1.12.md

@@ -49,6 +49,7 @@ All changes included in 1.12:
 
 - ([#14822](https://github.com/quarto-dev/quarto-cli/issues/14822)): Translate the `tools-share`, `tools-download`, and `skip-to-content` language keys in Greek. (author: @sogav21)
 - ([#14822](https://github.com/quarto-dev/quarto-cli/issues/14822)): The Lithuanian search label and the Swedish caution callout title no longer fall back to English.
+- ([#14822](https://github.com/quarto-dev/quarto-cli/issues/14822)): Translate the `title-block-modified` language key in Korean, and the `code-links-title`, `launch-binder-title`, `launch-dev-container-title`, `listing-page-field-wordcount` and `listing-page-words` language keys in Serbian (Latin), using reviewed machine translation.
 - ([#15126](https://github.com/quarto-dev/quarto-cli/issues/15126)): Translate the `revealjs-menu-button-label` language key in Brazilian Portuguese (author: @bonijoao), and, using reviewed machine translation, in Azerbaijani, Basque, Bulgarian, Catalan, Chinese, Czech, Finnish, German, Hebrew, Icelandic, Indonesian, Italian, Japanese, Korean, Lithuanian, Norwegian Bokmål, Norwegian Nynorsk, Polish, Portuguese, Russian, Serbian (Latin), Slovak, Slovenian, Spanish, Swedish, Turkish and Ukrainian.
 - ([#15225](https://github.com/quarto-dev/quarto-cli/pull/15225)): Fix several Brazilian Portuguese (`pt-BR`) translations, including the table of contents title (now "Sumário") and the proof title (now "Demonstração"), and translate the `link-external-newwindow-label` language key. (author: @bonijoao)
 - ([#15260](https://github.com/quarto-dev/quarto-cli/issues/15260)): Translate the `link-external-newwindow-label` language key, the new-tab announcement for external links, in Basque, Catalan, Chinese (Simplified and Traditional), Czech, Danish, Dutch, Finnish, French, Hebrew, Icelandic, Indonesian, Italian, Japanese, Korean, Lithuanian, Norwegian Bokmål, Norwegian Nynorsk, Polish, Portuguese, Russian, Serbian (Latin), Slovak, Slovenian, Spanish, Swedish, Turkish and Ukrainian, using reviewed machine translation.

src/resources/language/_language-ko.yml

@@ -32,6 +32,7 @@ title-block-author-plural: "저자"
 title-block-affiliation-single: "소속"
 title-block-affiliation-plural: "소속"
 title-block-published: "공개"
+title-block-modified: "수정"
 title-block-keywords: "키워드"
 
 callout-tip-title: "힌트"

src/resources/language/_language-sr-Latn.yml

@@ -5,6 +5,9 @@ related-formats-title: "Drugi Formati"
 related-notebooks-title: "Sveske"
 source-notebooks-prefix: "Izvor"
 other-links-title: "Drugi Linkovi"
+code-links-title: "Linkovi ka Kodu"
+launch-dev-container-title: "Pokreni Dev Container"
+launch-binder-title: "Pokreni Binder"
 
 article-notebook-label: "Sveska Članka"
 notebook-preview-download: "Skini Svesku"
@@ -140,10 +143,12 @@ listing-page-field-filename: "Ime Datoteke"
 listing-page-field-filemodified: "Izmenjeno"
 listing-page-field-subtitle: "Podnaslov"
 listing-page-field-readingtime: "Potrebno za čitanje"
+listing-page-field-wordcount: "Broj reči"
 listing-page-field-categories: "Kategorije"
 listing-page-minutes-compact: "{0} min"
 listing-page-category-all: "Sve"
 listing-page-no-matches: "Slična dokumenta nisu pronađena"
+listing-page-words: "{0} reči"
 listing-page-filter: "Filter"
 
 draft: "Nacrt"

tests/unit/language-known-gaps.yml

@@ -1,12 +1,6 @@
 # <key>: [<lang>, ...]   languages whose translation of <key> is still missing (languages sorted)
 announcement-dismiss-label: [da, el, nb]
-code-links-title: [sr-Latn]
-launch-binder-title: [sr-Latn]
-launch-dev-container-title: [sr-Latn]
 link-external-newwindow-label: [az, bg, de]
-listing-page-field-wordcount: [sr-Latn]
-listing-page-words: [sr-Latn]
 revealjs-menu-button-label: [da, nl]
 skip-to-content: [eu, is]
-title-block-modified: [ko]
 tools-download: [sr-Latn]