As part of this, I added a new `search_icon` helper, and a new
`button_link_to` helper, which both styles the link as a button and
accepts an `icon` parameter to make it easier to pass in an icon!
Motivation is that I wanna add NeoPass stuff to here! But also like,
it's looked bad for a long time, let's clean it up!! (I just used the
Devise default without any styling at all lol)
This required a buncha fixes to how SASS scoping works! Needed to add a bunch of imports for stuff that previously would get read from the global scope by being imported *after* the constants and mixins etc.
There's clearly a lot of refactor opportunity here, but I'm not gonna worry about it!!
I wasn't sure what we were actually using it for, turns out it was mostly polyfills for CSS features that are very standard now!
I didn't audit these changes very carefully tbqh because they seemed pretty simple? Fingers crossed!
Eyyy tasty! There were some issues with conflicting styles with the main app, but I think we got it!
Scoping Chakra's CSS reset was a big deal to not accidentally overwrite the app's own styles lol, and we had to solve a specificity problem for that, thanks Aria for the :where tip!! <3
This is a bit more standard, and has the bonus of being compatible with Devise, which is using `flash[:notice]` and so its flashes were coming out unstyled, oops!
