* Add a11y tests in cypress for methodology page
- update cypress to version 8.5
- add HTML lang the <head> element
- change process list headings to h4
- add alt tag to download image icon
- move <GovBanner> into <Header>
- add documentation around a11y testing
* Add cypress a11y tests for cejst page
- add alt icon for mapIntro page
- change legend to be a normal div
- add a class that mimics the h4 styles
- remove superfluous styles
* Add cypress a11y tests for contact and 404 page
* Update snapshots
* Move static text in footer to copy folder
* Add cypress a11y test to About page
- add required h1 tag
- updates snapshot
* Add site_url.xml and modify robots.txt file
- adds plugins for robots.txt and sitemap
- remove env.local and will add env.production
- modifiy all yml files (docker and GHA) to specify new env variables
- refactor env variables to either DATA_SOURCE, SITE_URL or PATH_PREFIX
- set defaults for env variables in gatsby-config
- remove timeline component
- will add blank index page
- update README on info on env variables
* Add plugin to allow custom env vars
- allows system env vars, ie, DATA_SOURCE on client-side application
* Update displayed URLs in GHA to new CDN (d29)
- also updates the blank index.html
* Correct spacing
* Set SITE_URL to new CDN for robots.txt
* Remove SITE_URL as this is set by GHA
* Update README around docker and env vars
* Add env variable to set path prefix
- When routing traffic to our new URL, the path prefix needs to be blank
- adding path prefix to be set by env var to yml files
* Update reference to env var in PATH_PREFIX
* Update PR message URL with CDN
- The actual website will point to the base url CDN
