This also adds a little button for expanding / collapsing this additional information.
It is expanded by default right now because I could not get the toggling to work yet.
Refs #428.
- Fix jank in shrinking animation when search box loses focus after overlapping forum title.
- Use solid colors instead of transparent whites/blacks for colored header controls so that search box isn't transparent when it does overlap forum title.
- This also simplifies colored header variables, making them more analogous to the non-colored header variables, and allowing for the removal of some conditional CSS in the notifications dropdown button.
Some more radical changes to header layout (flexbox?) may be made when we implement the new mobile design (#867), but for now this is an acceptable fix.
When the list is shown in the side-pane, the background of the currently-selected discussion is the @control-bg. The hover color shouldn't be quite as strong as that.
Also fixes a couple of miscellaneous bugs:
- Minimise the Composer when clicking the preview button in full-screen mode on desktop.
- Minimise the Composer when clicking the link to the discussion/post in the header on mobile/full-screen mode.
- Use cookies + CSRF token for API authentication in the default client. This mitigates potential XSS attacks by making the token unavailable to JavaScript. The Authorization header is still supported, but not used by default.
- Make sensitive/destructive actions (editing a user, permanently deleting anything, visiting the admin CP) require the user to re-enter their password if they haven't entered it in the last 30 minutes.
- Refactor and clean up the authentication middleware.
- Add an `onhide` hook to the Modal component. (+1 squashed commit)
