update 404 page

to also reflect the recent changes in equipment pages

layouts/404.html

@@ -1,15 +1,29 @@
 {{ define "main" }}
-  <h1 class="mb-3 text-4xl font-extrabold">{{ i18n "error.404_title" | emojify }}</h1>
-  <p class="mt-8 mb-12 text-neutral-400 dark:text-neutral-500">
+<h1 class="mb-3 text-4xl font-extrabold">
+  {{ i18n "error.404_title" | emojify }}
+</h1>
+<p class="mt-8 mb-8 text-neutral-400 dark:text-neutral-500">
   {{ i18n "error.404_error" | emojify }}
-  </p>
-  <div class="prose dark:prose-invert">
+</p>
+<div class="prose dark:prose-invert">
   <p>{{ i18n "error.404_description" | emojify }}</p>
-  </div>
-  <div class="mt-8 prose dark:prose-invert">
+</div>
+<div class="mt-6 prose dark:prose-invert">
   <strong>You can try to find the page with the search:</strong><br />
   Click on the magifying glass 🔍 in the top right corner or hit
   <kbd>/</kbd> (that is usually <kbd>Shift + 7</kbd>
   on a german layout) on your keyboard to open the search box.
-  </div>
+</div>
+<p class="mt-8 mb-3 text-neutral-400 dark:text-neutral-500">
+  I am sorry for any inconvenience this might cause to you, but in the end we
+  all have to face new changes...
+</p>
+<div class="prose dark:prose-invert">
+  <p>
+    I made some re-structuring recently and I haven't updated a proper
+    redirection yet. I will do that as soon as I'm aware of the missing alias.
+    In the meantime you may want to use the search or browse yourself through
+    the website.
+  </p>
+</div>
 {{ end }}