chore: Remove older UI (#11720)

app/javascript/dashboard/components-next/HelpCenter/CategoryCard/CategoryCard.story.vue

@@ -32,7 +32,7 @@ const categories = [
       <div
         v-for="(category, index) in categories"
         :key="index"
-        class="px-20 py-4 bg-white dark:bg-slate-900"
+        class="px-20 py-4 bg-n-background"
       >
         <CategoryCard
           :id="category.id"

app/javascript/dashboard/components-next/HelpCenter/CategoryCard/CategoryCard.vue

@@ -121,11 +121,7 @@ const handleAction = ({ action, value }) => {
     </div>
     <span
       class="text-sm line-clamp-3"
-      :class="
-        hasDescription
-          ? 'text-slate-500 dark:text-slate-400'
-          : 'text-slate-400 dark:text-slate-700'
-      "
+      :class="hasDescription ? 'text-n-slate-11' : 'text-n-slate-9'"
     >
       {{ description }}
     </span>