Removes a large number of image assets that are no longer used by the site. This reduces the size of the repository and the deployed site.

These images include various sizes of favicons, touch icons, cover images for old blog posts and weeknotes, and character images.

The `make-post.py` script is adjusted to correctly format the year in post paths.

- Implemented a ClassView to handle CSV file downloads.
- The view generates a CSV file with car data (brand, model, year).
- Allows customization of CSV dialect and data structure.
- Supports integration with other Class Mixins for additional functionalities.