Improve app accessibility #577
Description
We haven't reviewed the content of the app for accessibility issues. We should identify problems and improve incrementally; we're unlikely to be able to fix everything all at once.
We can run it through Wave.
There's some thoughts on Shiny accessibility from Appsilon, JR, etc. #568 also may help gather user feedback, along with user conversations from the product development team.
The ultimate goal is WCAG compliance in line with the NHS Service Manual.