Some Japanese translations have been added.

website/i18n/ja/code.json

@@ -1,6 +1,6 @@
 {
   "theme.ErrorPageContent.title": {
-    "message": "This page crashed.",
+    "message": "ページがクラッシュしました。",
     "description": "The title of the fallback page when the page crashed"
   },
   "theme.ErrorPageContent.tryAgain": {
@@ -24,7 +24,7 @@
     "description": "The ARIA label for close button of announcement bar"
   },
   "theme.BackToTopButton.buttonAriaLabel": {
-    "message": "Scroll back to top",
+    "message": "ページの先頭に戻る",
     "description": "The ARIA label for the back to top button"
   },
   "theme.blog.archive.title": {
@@ -196,15 +196,15 @@
     "description": "The ARIA label for the link to full blog posts from excerpts"
   },
   "theme.colorToggle.ariaLabel": {
-    "message": "Switch between dark and light mode (currently {mode})",
+    "message": "ダークモードとライトモードを切り替える (現在は {mode})",
     "description": "The ARIA label for the navbar color mode toggle"
   },
   "theme.colorToggle.ariaLabel.mode.dark": {
-    "message": "dark mode",
+    "message": "ダークモード",
     "description": "The name for the dark color mode"
   },
   "theme.colorToggle.ariaLabel.mode.light": {
-    "message": "light mode",
+    "message": "ライトモード",
     "description": "The name for the light color mode"
   },
   "theme.docs.DocCard.categoryDescription": {
@@ -237,7 +237,7 @@
     "message": "See all results"
   },
   "theme.SearchBar.label": {
-    "message": "Search",
+    "message": "検索",
     "description": "The ARIA label and placeholder for search button"
   },
   "theme.SearchPage.existingResultsTitle": {
@@ -253,7 +253,7 @@
     "description": "Pluralized label for \"{count} documents found\". Use as much plural forms (separated by \"|\") as your language support (see https://www.unicode.org/cldr/cldr-aux/charts/34/supplemental/language_plural_rules.html)"
   },
   "theme.SearchPage.noResultsText": {
-    "message": "No documents were found",
+    "message": "見つかりませんでした。",
     "description": "The paragraph for empty search result"
   },
   "theme.admonition.note": {
@@ -273,7 +273,7 @@
     "description": "The default label used for the Info admonition (:::info)"
   },
   "theme.admonition.caution": {
-    "message": "caution",
+    "message": "注意",
     "description": "The default label used for the Caution admonition (:::caution)"
   },
   "theme.tags.tagsPageTitle": {
@@ -309,11 +309,11 @@
     "description": "The ARIA label to collapse the sidebar category"
   },
   "theme.unlistedContent.title": {
-    "message": "Unlisted page",
+    "message": "非公開のページ",
     "description": "The unlisted content banner title"
   },
   "theme.unlistedContent.message": {
-    "message": "This page is unlisted. Search engines will not index it, and only users having a direct link can access it.",
+    "message": "このページは限定公開です。検索エンジンには表示されません。リンクを持っているユーザーのみアクセスできます。",
     "description": "The unlisted content banner message"
   },
   "theme.SearchPage.inputPlaceholder": {
@@ -449,11 +449,11 @@
     "description": "The unlisted content banner message"
   },
   "theme.contentVisibility.draftBanner.title": {
-    "message": "Draft page",
+    "message": "下書きページ",
     "description": "The draft content banner title"
   },
   "theme.contentVisibility.draftBanner.message": {
-    "message": "This page is a draft. It will only be visible in dev and be excluded from the production build.",
+    "message": "このページは下書きです。開発環境でのみ表示され、本番ビルドからは除外されます。",
     "description": "The draft content banner message"
   }
 }