use standard project layout and tool config across all pallets and
pallets-eco projects
* add issue templates
* add dependabot grouped updates for actions and pypi
* add lock inactive closed issues workflow
* add publish workflow with slsa and trusted publishing
* simplify tests workflow matrix
* simplify docs config.py
* show license in docs
* use pip-compile to pin development dependencies
* rename test to tests
* add .editorconfig
* simplify .gitignore
* add pre-commit hooks (will run formatters in a subsequent PR)
* pin os and python in .readthedocs.yaml
* update license with original commit date and pallets-eco
* use pyproject.toml and flit_core instead of setuptools
* only declare flask dependency
* add config for mypy and pyright (will add typing in a subsequent PR)
* readme is markdown
* add pallets-eco message to readme
* remove install and docs links from readme
* add style, typing, docs tox envs
* use faster wheel building tox config
* add tox command to update dev dependencies
Previously the custom theme was vendored in via a `git` submodule...
Now this theme is available via a python package, so install it using `extras_require` instead.
This also unlocks letting other tooling such as ReadTheDocs install the custom theme without having to do custom git incantations.
I also removed the `index_logo` config as Sphinx warns that it's not a supported option by the theme. I grep'd the theme package, and it makes no mention of this option, besides we were leaving it blank already, so there's no point in having it.
This reverts commit 45b70c952f.
This commit broke the readthedocs build because RTD is building the docs
without running setup.py. So there is no package metadata.