404: fix text color, add movotivation (#45)

spice up that 404 page 🔥🔥🔥

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Co-authored-by: nova <novanai.dev@gmail.com>

Author: wizzdom

src/_includes/404.njk

@@ -3,7 +3,8 @@
     <div class="max-w-lg">
       <p class="text-primary text-sm font-bold">Error 404</p>
       <h1 class="text-4xl font-bold py-6">We can't find that page</h1>
-      <p class="text-neutral">Sorry, the page you are looking for doesn't exist or has been moved.</p>
+      <p class="text-base/relaxed">Sorry, the page you are looking for doesn't exist or has been moved.</p>
+      <img src="https://cdn.redbrick.dcu.ie/atlas/static/img/nyan.webp" alt="Nyan Cat" class="mt-5"/>
     </div>
   </div>
-</div>
+</div>