Add article form error rendering
Add redis for caching
Add redis caching for a method, but unclear if it's working/useful
roll back caching for now, not working too well
get previews working for title and body in form
get image preview working, style tags and new article link
Throw in list and paragraph styling for markdown, also for body text
Add indices for uid and provider
Add sign in modal, fix alerts on sign up page
Make signout redirect to root url