feat(hugo): replace deprecated APIs for Hugo v0.156+ compatibility

Migrate site.Data → hugo.Data (42 occurrences), site.IsMultiLingual →
hugo.IsMultilingual, and site.AllPages → hugo.Sites nested range.
Simplify Netlify redirects template to use pre-processed aliases
instead of relLangURL per gohugoio/hugo#14408.

modules/blox/layouts/_partials/components/footers/minimal.html

@@ -5,9 +5,9 @@
     {{- partial "functions/get_icon" (dict "name" "globe-alt" "attributes" `class="inline-block pr-1" style="height: 1em"`) -}}
     {{ i18n "languages" }}:
   </div>
-  <div class="font-bold">{{ index site.Data.languages .Lang }}</div>
+  <div class="font-bold">{{ index hugo.Data.languages .Lang }}</div>
   {{ range .Translations }}
-  <div><a href="{{ .Permalink }}">{{ index site.Data.languages .Lang }}</a></div>
+  <div><a href="{{ .Permalink }}">{{ index hugo.Data.languages .Lang }}</a></div>
   {{ end }}
 </div>
 {{ end }}

modules/blox/layouts/_partials/components/headers/navbar-simple.html

@@ -104,7 +104,7 @@
         <li class="lg:px-2">
           <select onchange="document.documentElement.setAttribute('data-theme-pack', this.value); localStorage.setItem('hb-theme-pack', this.value);" class="bg-transparent text-[var(--hb-color-header-fg)] border-none focus:ring-0 cursor-pointer text-sm font-medium">
             <option value="">Theme</option>
-            {{ range $name, $data := site.Data.themes }}
+            {{ range $name, $data := hugo.Data.themes }}
               <option value="{{ $name }}">{{ $name | humanize }}</option>
             {{ end }}
           </select>

modules/blox/layouts/_partials/components/headers/navbar.html

@@ -181,7 +181,7 @@
       <div class="px-3">
         <select onchange="document.documentElement.setAttribute('data-theme-pack', this.value); localStorage.setItem('hb-theme-pack', this.value);" class="bg-transparent text-[var(--hb-color-header-fg)] border-none focus:ring-0 cursor-pointer text-sm font-medium">
           <option value="">Theme</option>
-          {{ range $name, $data := site.Data.themes }}
+          {{ range $name, $data := hugo.Data.themes }}
             <option value="{{ $name }}">{{ $name | humanize }}</option>
           {{ end }}
         </select>

modules/blox/layouts/_partials/components/language-chooser.html

@@ -16,7 +16,7 @@
       <div class="flex items-center gap-2 capitalize">
         {{/* Match theme chooser icon height */}}
         {{- partial "functions/get_icon" (dict "name" "globe-alt" "attributes" "height=18") -}}
-        {{- if not $hide_language_name -}}<span>{{ index site.Data.languages $page.Lang }}</span>{{ end -}}
+        {{- if not $hide_language_name -}}<span>{{ index hugo.Data.languages $page.Lang }}</span>{{ end -}}
       </div>
     </button>
     <ul
@@ -29,7 +29,7 @@
             href="{{ .Permalink }}"
             class="relative cursor-pointer text-gray-800 dark:text-gray-100 hover:bg-primary-50 hover:text-primary-600 hover:dark:bg-primary-500/10 hover:dark:text-primary-200 whitespace-nowrap py-1.5 transition-colors ltr:pl-3 ltr:pr-9 rtl:pr-3 rtl:pl-9"
           >
-            {{- index site.Data.languages .Lang -}}
+            {{- index hugo.Data.languages .Lang -}}
           </a>
         </li>
       {{ end -}}

modules/blox/layouts/_partials/components/page_sharer.html

@@ -1,6 +1,6 @@
 {{ if ne .Params.share false }}
 <section class="flex flex-row flex-wrap justify-center pt-4 text-xl">
-  {{ range where site.Data.page_sharer.links "enable" true }}
+  {{ range where hugo.Data.page_sharer.links "enable" true }}
 
   {{/* mailto URIs require percent-encoding (%20 for spaces) per RFC 6068, not form-encoding (+ for spaces). */}}
   {{/* Use urls.PathEscape for mailto; urlquery for other schemes (https, etc.). */}}