This also introduces a combo grid/flex layout, which will also be
applied to the DM and Streams headings.
Because there are now multiple classes referenced from the
Puppeteer tests, those selectors now include the expanded
navigation area's parent ID selector.
This commit renames the classes and IDs in the views area
(formerly global filters) to a set of flexible values all
prefixed in some way with `left-sidebar-navigation`.
This is meant to make the styles and structures in the area
more readable, while also keeping things flexible into the
future as this area's elements change.
Co-Authored-By: Hardik Dharmani <Ddharmani99@gmail.com>
Aman Agrawal
Karl Stolley
evykassirer
Anders Kaseorg