wikipedia: remove dependence on (en) 'File:' prefix

Author: SnoopJ

sopel/modules/wikipedia.py

@@ -333,7 +333,7 @@ def mw_info(bot, trigger, match=None):
     if section:
         if section.startswith('cite_note-'):  # Don't bother trying to retrieve a snippet when cite-note is linked
             say_snippet(bot, trigger, server, query, show_url=False)
-        elif section.startswith('/media/File:'):
+        elif section.startswith('/media'):
             # gh2316: media fragments are usually images; try to get an image description
             image = section[7:]  # strip '/media' prefix in pre-3.9 friendly way
             say_image_description(bot, trigger, server, image)