[Request] (Recent YouTube change) Missing About tab on channel page

[toydotgame]

Yet another YouTube change to add to the unending pile of work for this addon, sorry. Current YouTube channel page look:

You have to click the bio text under the handle/sub/video count line to open an About popup:

About tab reference (Polymer layout, unfortunately):

(All images here link to the pages where I took the screenshots) Interestingly, https://www.youtube.com/<channel/user/c/u/@handle>/about (the old link to the About tab) links to the main channel page but with the About popup open.