Django-cast

Added an API endpoint for pages and images and fixed some smaller issues.

Refactoring
- Query optimization - didn't work, this needs some more infrastructure first

Features
- Added an `images` endpoint to the API
- Added a `pages` endpoint to the API
- Added a `noindex` option to the Blog model to exclude a blog from search engines

Fixes
- Fixed audio web player name `embed.js`
- Fixed a bug caused by mypy and static protocols raising a NotImplementedError in production :(

Compatibility with [django-crispy-forms >= 2](https://django-crispy-forms.readthedocs.io/en/latest/)

Refactoring
- Added badge for supported Python versions
- Added some pagination documentation

Features
- Added bootstrap4 template pack + settings
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Fixes
- Fixed date facets breaking out of their container

Coverage reached 100%!

Refactoring
- Some documentation enhancements/fixes
- Nearly complete type annotations
- Added a few more tests -> 100% coverage 🥳
- Moved coverage config into `pyproject.toml`

Features
- Wagtail 4.2 compatibility

Fixes
- Fixed pagination 66

Split blog and podcast models.

Refactoring
- Removed pub_date field from Post model (this is now handled by wagtail)
- Removed inheriting from TimestampedModel in Post and Blog models
- Split blog and podcast models + split index pages and detail pages into different modules

Features
- Some documentation enhancements/fixes

Splitting up post in episodes and posts is the big new feature in this release.

Features
- More information about the release process, so I don't have to guess every time I publish a new release
- Split up post page model in episodes and posts
- Renamed test files to make the names easier searchable
- Use a JSONField for the audio model to cache file sizes
- Added twitter player card metadata to episode detail page + single button player view

Fixes
- Fixed [codecov](https://codecov.io) badge
- Added mypy to pre-commit hooks and fixed some issues
- Fixed Post form in django admin (don't try to save body stream field)
- Fixed a little issue raising an exception when an unknown language is set for a code block
- Removed to warnings showing up running migrations

Podlove Player share sheet and code blocks for Wagtail.

Features
- Added code blocks for Wagtail adding [Pygments](https://pygments.org/docs/) as a dependency

Fixes
- Fixed share sheet of Podlove Player

Refactoring
- Removed some of the pytest.mark.django_db decorators
- Removed all the request analytics stuff (switched using plausible...)
- Removed django-watson dependency since it is not used anymore