refactor: adopts rendering process to new data source

renderer/fifty_ohm_html_renderer.py

@@ -277,7 +277,7 @@ class FiftyOhmHtmlRenderer(HtmlRenderer):
     def render_photo_helper(id, ref, text, number, alt_text):
         return f"""
                 <figure class="photo" id="ref_{ref}" name="{ref}">
-                    <img src="photos/{id}.jpg" alt="{alt_text}">
+                    <img src="photos/{id}.png" alt="{alt_text}">
                     <figcaption>Abbildung {number}: {text}</figcaption>
                 </figure>
             """

renderer/question.py

@@ -8,12 +8,12 @@ class Question(BlockToken):
     def start(line):
         # Search for:
         # [question:123]
-        return re.match(r"^\s*\[question:\d+\]", line)
+        return re.match(r"^\s*\[question:[\w\d]+\]", line)
 
     @classmethod
     def read(cls, lines):
         first_line = next(lines)
-        question_number = re.match(r"^\s*\[question:(\d+)\]", first_line).group(1)
+        question_number = re.match(r"^\s*\[question:([\w\d]+)\]", first_line).group(1)
         return question_number
 
     @classmethod