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>