* update copyright symbols to unicode
* clean up version screen/copyright notice
* small change to make commands more similar
* update imports to appease isort
* fix test
* update one more file merged since PR was open
* remove old file that was only needed for gh-pages
* fix broken icons on docs home page
* add more contrast to twitter button hover state
* tweak non-accessible color to meet standard
* tweak non-accessible colors to meet standard
* add some attribtutes to docs template for accessbility
* fix colors to meet accessibility guidelines (4.5 contrast ratio for text)
* Fix last remaining pa11y error (no button on search form)
This fix required moving the mkdocs theme out of the docs directory.
It's no in the docs_theme directory, and the mkdocs config is updated
accordingly.
* Re-enable accessibility testing for docs sit
Also, move the pa11y script into the gh actions workflow
* clean up linting issues in css
* fix and standardize link colors across site
* fix twitter button opacity making text fail contrast requirements
* move buttons on docs site index nav, tweak font weights
* fix footer opacity, tweak spacing of the now more visible sections of the page
* change font sizes on index page to meet WCAG
* udpate font sizes site-wide for accessibility
* fix sidebar for accessibility (font sizes and color contrasts)
* restyle code blocks to have dark background, and meet accessibility requirements
* standardize (accessible) colors across docs site
