Add code for contact block

templates/shortcodes/teckids_contact.html

-<!-- FIXME -->
+<section class="section">
+  <h2 class="title">{{ title|default(value="Kontakt aufnehmen") }}</h2>
+  <div class="columns">
+    <div class="column is-two-thirds">
+      {{body|markdown|safe}}
+    </div>
+    <div class="column is-one-third">
+      <div class="buttons are-large are-responsive">
+        <a class="button is-primary" href="mailto:{{ mail|default(value="verein@teckids.org") }}">
+          <i class="fa-solid fa-envelope-open-text"></i>
+          E-Mail schreiben
+        </a>
+	<a class="button is-link" href="tel:{{ phone|default(value="+4922892934160") }}">
+          <i class="fa-solid fa-phone"></i>
+          E-Mail schreiben
+	</a>
+      </div>
+    </div>
+  </div>
+</section>