feat(navigation): hard-switch to Zibll navigation and Font Awesome 5

templates/parts/docs/doc-index-card.php

@@ -28,7 +28,7 @@ $excerpt = wp_trim_words(get_the_excerpt(), 30, '...');
         </div>
     <?php else : ?>
         <div class="aksrt-doc-index-card__icon">
-            <i class="fas fa-book-open"></i>
+            <i class="fa fas fa-book"></i>
         </div>
     <?php endif; ?>
 
@@ -40,16 +40,16 @@ $excerpt = wp_trim_words(get_the_excerpt(), 30, '...');
         <div class="aksrt-doc-index-card__meta">
             <?php if ($child_count > 0) : ?>
                 <span class="aksrt-doc-index-card__count">
-                    <i class="fas fa-file-alt"></i>
+                    <i class="fa fas fa-file-alt"></i>
                     <?php printf(esc_html__('%d 篇文章', 'aksrt'), $child_count); ?>
                 </span>
             <?php endif; ?>
             <span class="aksrt-doc-index-card__date">
-                <i class="fas fa-clock"></i>
+                <i class="fa fas fa-clock"></i>
                 <?php echo esc_html(get_the_date('', $page_id)); ?>
             </span>
         </div>
     </div>
 
-    <i class="fas fa-chevron-right aksrt-doc-index-card__arrow"></i>
+    <i class="fa fas fa-chevron-right aksrt-doc-index-card__arrow"></i>
 </a>