Static CMS v2.0 (#226)

- [x] Update auf Static CMS v2.0
- [x] aktualisierte Shortcodes (schließt #225)
- [x] aktualisierte Previews (schließt #181)
- Ordnerunterstützung
- [x] vervollständigte Seiten
- [x] Aufräumarbeiten

Reviewed-on: https://git.cantorgymnasium.de/gcg/gcg-website/pulls/226

layouts/partials/card-btn-ni.html

@@ -0,0 +1,7 @@
+<div class="card border-primary rounded-0 hover-shadow mb-4">
+    <div class="card-body">
+      <h4 class="card-title text-truncate"><a href="{{ .link }}">{{ .title }}</a></h4>
+      <a href="{{ .link }}" class="btn btn-primary btn-sm" data-pagefind-ignore>{{ i18n "show_more"}}</a>
+    </div>
+  </div>
+    

layouts/partials/termin.html

@@ -1,4 +1,4 @@
-<div class="card d-md-table w-100 hover-shadow border-primary ps-0 mb-4">
+<div class="card d-md-table w-100 hover-shadow border-primary ps-0 pe-0 mb-4">
     <div class="d-md-table-cell text-center p-4 bg-primary text-white mb-4 mb-md-0 termin-tc rounded">
       <span class="h2 d-block">{{ time.Format "2" .date}}</span>
       <span class="d-block">{{ time.Format "Jan 2006" .date}}</span>
@@ -8,7 +8,7 @@
       <p class="h4 mb-0 d-block">{{ .title }}</p>
     </div>
     {{ with .location }}
-    <div class="d-md-table-cell text-end pe-0 pe-md-4 p-2 vertical-align-middle">
+    <div class="d-md-table-cell text-end pe-md-4 p-2 vertical-align-middle">
       <p><i class="mdi mdi-map-marker-radius-outline icon-s text-primary me-2"></i>{{ . | markdownify }}</p>
     </div>
     {{ end }}