Add new templates for Dienstleistungen, Kontakt, Projekte, and Team pages

- Created 'dienstleistungen.html' to showcase services offered, including inventory system, license management, support, consulting, security concepts, and training.
- Created 'kontakt.html' for contact information, including email and phone details, along with a booking section for appointments.
- Created 'projekte.html' to highlight current and past projects and clients, providing insights into collaborations with educational institutions.
- Created 'team.html' to introduce the team structure, roles, and selected references in the educational sector.

Website/templates/register.html

@@ -78,7 +78,7 @@
 {% block content %}
 <section class="auth-wrap">
     <h1>Registrierung</h1>
-    <p>Legen Sie ein Konto an, um den Kalender fuer Terminanfragen zu nutzen.</p>
+    <p>Legen Sie ein Konto an, um den Kalender für Terminanfragen zu nutzen.</p>
     <form method="POST" action="{{ url_for('register') }}">
         <div class="field">
             <label for="display_name">Name</label>