Stylize teckids event

Stylizes the teckids_event-shortcode.

Adds possiblity for shortcode bodies.

templates/shortcodes/teckids_event.html

@@ -10,20 +10,26 @@
           <p class="subtitle is-6">{{ event.description }}</p>
           <div class="columns">
             <div class="column is-one-third">
-              <address>
+              <h4>Wo?</h4>
+              <i class="fa-regular fa-location-dot mr-3"></i>
+              <address class="is-inline-block">
                 {{ event.location }}
               </address>
             </div>
             <div class="column is-one-third">
+              <h4>Wann?</h4>
+              <i class="fa-regular fa-calendar-days mr-3"></i>
               <time datetime="{{ event.date }}">
                 {{ event.date | date }}
               </time>
             </div>
             <div class="column is-one-third">
+              <h4>Preis?</h4>
+              <i class="fa-regular fa-money-bill mr-3"></i>
               {{ event.cost }} €
             </div>
           </div>
-        </div>
+          </div>
         <div class="column is-one-third">
           <div class="buttons are-large are-responsive">
             <a class="button is-primary is-fullwidth" href="https://ticdesk.teckids.org/app/paweljong/event/{{ slug }}">