Ensure that versions are consistent between 1) what we specify in package.json; 2) the tag specified on the pre-commit mirror; 3) the package dependency line in the pre-commit config.
This un-reverts commit 99dd11510b with fixes for Prettier mirror (it's rev must be 3.0.3 even if using a newer Prettier).
The original commit which was reverted is 5971ce7f3f
This:
- updates the pre-commit configuration and setup.py testing dependencies
- updates isort/flake8 configuration for black
- adds black linting to Makefile and CircleCI configuration
- updates editorconfig with the new line length (88) for py files
- updates python guidelines in docs
- Install Prettier
- Add Prettier configuration
- Add git-blame-ignore-revs
- Clean up .editorconfig indent_style definition
- Clean up .editorconfig space definitions
- Add documentation for Prettier
- Add missing Prettier run-scripts
- Disable Prettier formatting in CI for now
