feat(i18n): add translations for the new languages (de, es, fr, it, CJK)

layouts/_default/single.html

@@ -3,7 +3,12 @@
   {{- $currentPage := . -}}
   {{- with partial "function/currentMenuItem.html" . -}}
     {{- partial "resources/imageJSON.html" (dict "Path" .DirName "Page" $currentPage) -}}
-    <script>document.getElementById("main").setAttribute("currentMenuItemIndex", "{{- (sub .ID 1) -}}")</script>
+    <script>
+      document.getElementById("main").setAttribute("currentMenuItemIndex", "{{- (sub .ID 1) -}}")
+      document.getElementById("main").setAttribute("nextText", "{{- i18n "next" -}}")
+      document.getElementById("main").setAttribute("prevText", "{{- i18n "prev" -}}")
+      document.getElementById("main").setAttribute("closeText", "{{- i18n "close" -}}")
+   </script>
   {{- end -}}
   <div class="container">
     {{- partial "nav.html" . -}}

layouts/partials/head/link.html

@@ -29,7 +29,7 @@
 
 {{/* fonts */}}
 <link rel="preload" href="/lib/fonts/NotoSans-Regular.woff2" as="font" crossorigin />
-{{- if (partial "function/langCode.html" (slice "en")) -}}
+{{- if (partial "function/langCode.html" (slice "en" "de" "fr" "es" "it")) -}}
   <link rel="preload" href="/lib/fonts/GeistVF.woff2" as="font" crossorigin />
 {{- else if (partial "function/langCode.html" (slice "zh-cn" "zh-sg")) -}}
   <link

layouts/partials/nav.html

@@ -17,7 +17,7 @@
     {{- end -}}
   </div>
   <div class="threshold">
-    <span>Threshold:</span>
+    <span>{{- i18n "threshold" -}}:</span>
     <span>
       <button class="dec">&#xFF0D;</button>
       <span class="num"></span><span class="num"></span><span class="num"></span