#25 automate axe checks

[Anonymous]

Originally created by: craigwh10

Would be nice to have https://www.npmjs.com/package/axe-core or similar running inside one of the git jobs in the case of changing any of the HTML/CSS.

Currently, this is only done manually, assumedly this would require some functional script writing which falls back onto the issue of using Puppeteer, so minimally the linting rules would be good for this.