- Created a new markdown file for generating posts with an image cover in Hugo.
- Implemented a Python script to generate images with text overlay using PIL.
- Added a shortcode for displaying toots from Mastodon, including user information and media attachments.

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.