i18n: refactor translations for docs site (#181)

* i18n: move some translations under example site

* chore: update i18n/ja.yaml

* i18n: update zh-tw.yaml

* i18n: update fr.yaml

* i18n: update pt.yaml

* i18n: update ko.yaml

* i18n: update nb.yaml and nn.yaml

* i18n: update sw.yaml

* i18n: update vi.yaml

* i18n: update sw.yaml

* docs: clean up ja site as it's incomplete

i18n/ko.yaml

@@ -2,8 +2,12 @@ backToTop: "맨위로 스크롤"
 changeLanguage: "언어변경"
 changeTheme: "테마변경"
 copyright: "© 2023 Hextra Project."
+dark: "어두운 테마"
 editThisPage: "Github에서 편집하기 →"
 lastUpdated: "마지막 수정일자"
+light: "밝은 테마"
+noResultsFound: "결과 없음"
 onThisPage: "페이지 목차"
+poweredBy: "제공 Hextra"
 readMore: "더보기 →"
 searchPlaceholder: "검색..."