feat(glossary): provide basic term glossary (#869)

* feat(glossary): provide basic term glossary

Enabled a site-wide terminology glossary.

* Added the `term` shortcode displaying term definition.
* Added the /glossary page showing all term definitions.
* Enabled a simplistic search of term definitions.

* refactor(glossary): update glossary page links and add callout for Hugo support

- Removed the glossary entry from the menu and adjusted weights for subsequent items.
- Added informational callouts in the glossary documentation for multiple languages, directing users to the Hugo Glossary Quick Reference.
- Updated links in the glossary documentation to point to the correct pages.

* fix(glossary): update links to glossary page format across multiple languages

- Changed links in the glossary documentation to use Hugo's relref format for consistency.
- Updated links in Persian, Japanese, English, and Simplified Chinese glossary pages.

---------

Co-authored-by: Xin <5097752+imfing@users.noreply.github.com>
Co-authored-by: Xin <xin@imfing.com>

layouts/glossary.html

@@ -0,0 +1,25 @@
+{{ define "main" }}
+  <div class='hx:mx-auto hx:flex hextra-max-page-width'>
+    {{ partial "sidebar.html" (dict "context" . "disableSidebar" true "displayPlaceholder" true) }}
+    {{ partial "toc.html" (dict "Params" (dict "toc" false)) }}
+    <article class="hx:w-full hx:break-words hx:flex hx:min-h-[calc(100vh-var(--navbar-height))] hx:min-w-0 hx:justify-center hx:pb-8 hx:pr-[calc(env(safe-area-inset-right)-1.5rem)]">
+      <main class="hx:w-full hx:min-w-0 hx:max-w-6xl hx:px-6 hx:pt-4 hx:md:px-12">
+        {{ if .Title }}<h1 class="hx:text-center hx:mt-2 hx:text-4xl hx:font-bold hx:tracking-tight hx:text-slate-900 hx:dark:text-slate-100">{{ .Title }}</h1>{{ end }}
+        <div class="content">
+          {{- with (index .Site.Data .Site.Language.Lang "termbase") -}}
+          <dl>
+            {{- range sort . "term" -}}
+            <dt>
+              {{- .term }}{{ with .abbr }} ({{ . -}}){{ end -}}
+            </dt>
+            <dd>
+              {{- .definition -}}
+            </dd>
+            {{- end -}}
+          </dl>
+          {{- end -}}
+        </div>
+      </main>
+    </article>
+  </div>
+{{ end }}