OZG-6477 7189 small improvements

alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-list-container/collaboration-request/collaboration-request.component.html

 <div class="block bg-white p-4 m-2 mt-4" role="region" aria-labelledby="collaboration-title">
-  <h2 id="collaboration-title" class="mb-4 text-2xl text-text">
+  <h2 id="collaboration-title" class="mb-4 text-xl text-text">
     <span class="font-semibold">{{ collaboration.titel }}</span>
     <span aria-hidden="true"> - vom 08.03.2024</span>
     <span class="sr-only">Erstellt am 8. März 2024</span>
   </h2>
-  <p>{{ collaboration.beschreibung }}</p>
+  <p class="whitespace-pre-line">{{ collaboration.beschreibung }}</p>
 </div>