Reconsider sidebar for 41?
I talked through the sidebar navigation issue with @exalm and @aplazas yesterday, it sounds like there's no clean way to have the sidebar be persistent while also having proper back gestures when folded :(
If the sidebar is not persistent (i.e. remains visible when you open categories) there's structurally no difference between that and the category tiles that are already on the Explore page, so it's pointless.
Given the above (and the fact that we'll need the new category pages anyway for the sidebar to make sense), I think we should reconsider the sidebar for 41. Reverting to a view switcher for now would make a lot of other things easier (e.g. search, navigation, adaptiveness), and not really change anything in terms of functionality (from a design PoV the sidebar is optional, everything in there also exists on the Explore page).
Relevant to #1111 (closed)