Before this change, undocking the sidebar would just hide the sidebar
from the screen which led people to complain that they "lost" their
sidebar and had to "find" it. With this change, we automatically display
the sidebar hamburger dropdown when you undock the sidebar. Like wise
when the sidebar is docked, the sidebar hamburger dropdown is
automatically collapsed.
When the experimental Sidebar is enabled, the hamburger drop down is replaced by a sidebar drop down. A user is given the ability to dock and undock the sidebar depending on their personal preference.
Do also note that the experimental sidebar is well, considered experimental at this point so I do not intend for the features here to be perfect. What I aim to do here is to ship the changes fast so that it can be used internally by the team to provide feedback. Custom links added by plugins and dark mode toggle has not been implemented as part of this commit as I aim to tackle it in another commit.
Co-authored-by: awesomerobot <kris.aubuchon@discourse.org>
