Add keywords list component

layouts/partials/keyword.html

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+<span style="margin-top: 0.5rem" class="mr-2">
+  <span class="flex">
+    <span
+      class="rounded-full bg-primary-500 dark:bg-primary-300 text-neutral-50 dark:text-neutral-700 px-1 py-[1px] text-xs font-normal"
+    >
+      {{ . }}
+    </span>
+  </span>
+</span>

layouts/shortcodes/keyword.html

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+{{ partial "keyword.html" .Inner }}

layouts/shortcodes/keywordList.html

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+<div class="flex flex-row flex-wrap items-center">{{- .Inner -}}</div>