Fixed a bug where the state wasn't being saved when clicking a HW set in the sidebar.
The view name wasn't being shown in the navigation bar.
More fixes with the general tab structure and state saving.
Problem Sets Manager and Classlist manager now saving the sort field and direction.
Fixed an error where the back/forward arrows were disabled and a bug on the class list manager.
fixed a regression where the help side pane wouldn't open.
Fixed error in which Problem Sets Detail wasn't loading correctly.
Fixed bug where sorting the problem set manager by date didn't give the direction arrow.
The Problem Set Details pane problem options sidebar is now correctly saving the state.
Merge with ww3-feature/back-button (not sure why the list of commits isn't here.)