Fix write courses script in case there is no upcoming cours

scripts/template.html

@@ -1,3 +1,4 @@
+{% if data|length >= 1 %}
 <table class="table table-striped-columns">
     <tbody>
         <tr>
@@ -10,3 +11,10 @@
         {% endfor %}
     </tbody>
 </table>
+{% else %}
+    {% if lang == "de" %}
+    <i>Keine bevorstehenden Veranstaltungen oder Kurse eingetragen</i>
+    {% else %}
+    <i>Aucun événement ou cours à venir</i>
+    {% endif %}
+{% endif %}

scripts/write-courses.py

@@ -12,7 +12,9 @@ def run():
     environment = Environment(loader=FileSystemLoader("./"))
 
     for lang in ( "de", "fr" ):
+        # Define the variables
         data = []
+        header = ("", "", "")
 
         # Get the jinia template to render HTML
         template = environment.get_template(f"template.html")
@@ -49,7 +51,8 @@ def run():
         # Render the template with the data
         content = template.render(
             header=header,
-            data=data
+            data=data,
+            lang=lang
         )
 
         # Open the output file to write the rendered template