style: Remove emoji from tutorial titles and buttons for a cleaner presentation

Website/templates/my_tutorials.html

@@ -292,14 +292,13 @@
 
 {% block content %}
 <section class="tutorials-header">
-    <h1>📚 Tutorial-Videos</h1>
+    <h1>Tutorial-Videos</h1>
     <p>Lernen Sie mit unseren umfassenden Tutorials, wie Sie Invario optimal nutzen können.</p>
 </section>
 
 {% if tutorials %}
     <section class="tutorial-player-section">
         <div class="video-player-wrapper" id="mainVideoPlayer">
-            <!-- YouTube embed or local video will be loaded here -->
             <iframe id="videoFrame" 
                     width="100%" 
                     height="100%" 
@@ -315,12 +314,12 @@
             <div class="video-meta">
                 <div class="video-meta-item">
                     <span class="video-meta-badge">
-                        📂 {{ tutorials[0].category or 'Allgemein' }}
+                        {{ tutorials[0].category or 'Allgemein' }}
                     </span>
                 </div>
                 <div class="video-meta-item">
                     <span class="video-meta-badge">
-                        ⏱️ {{ tutorials[0].duration or 'Unbekannt' }}
+                        {{ tutorials[0].duration or 'Unbekannt' }}
                     </span>
                 </div>
             </div>
@@ -328,9 +327,6 @@
                 {{ tutorials[0].description }}
             </p>
             <div class="controls-row">
-                <button class="btn-secondary" onclick="downloadTutorial()">
-                    💾 Herunterladen
-                </button>
                 <button class="btn-secondary" onclick="shareTutorial()">
                     🔗 Teilen
                 </button>
@@ -358,7 +354,7 @@
                     <h4 class="tutorial-card-title">{{ tutorial.title }}</h4>
                     <div class="tutorial-card-meta">
                         {% if tutorial.duration %}
-                        <span class="tutorial-duration">⏱️ {{ tutorial.duration }}</span>
+                        <span class="tutorial-duration">⏱{{ tutorial.duration }}</span>
                         {% endif %}
                         <span class="tutorial-category">{{ tutorial.category|default('Allgemein') }}</span>
                     </div>
@@ -383,10 +379,6 @@
             document.querySelector('.tutorial-player-section').scrollIntoView({ behavior: 'smooth' });
         }
 
-        function downloadTutorial() {
-            alert('Die Download-Funktion wird in Kürze verfügbar sein.');
-        }
-
         function shareTutorial() {
             const url = window.location.href;
             if (navigator.share) {