Fix: Operator, app template and benchmarking script errors after media type

Always set the media type before the file format.

Ref #142955

Pull Request: https://projects.blender.org/blender/blender/pulls/143433

tools/utils_doc/code_layout_diagram.py

@@ -953,6 +953,7 @@ def render_output(scene, bounds, filepath):
     scene.collection.objects.link(camera)
 
     render = scene.render
+    render.image_settings.media_type = 'IMAGE'
     render.image_settings.file_format = 'JPEG'
     render.image_settings.color_depth = '8'
     render.image_settings.color_mode = 'RGB'