Merge pull request 'srv/poe_manager/templates/index.html aktualisiert' (#5) from dev into main

Reviewed-on: #5

srv/poe_manager/templates/index.html

@@ -7,9 +7,9 @@
         Nächste Prüfung in -- Sekunden
     </span>
 </h2>
-<div class="row row-cols-1 row-cols-md-6 g-3">
+<div class="row g-3">
     {% for d in devices %}
-    <div class="col">
+    <div class="col-6 col-md-4 col-lg-3 col-xl-2">
         <div class="card text-center p-2"
      {% if last_seen.get(d[0]) %}
          title="{{ last_seen[d[0]] }}"