Comment 1 for bug 2046820

Here's a branch: https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/sleary/LP2046820-angular-nav-aria-current

To test:

1. Open up an Angular screen that is listed somewhere in the main navigation, like staff/catalog/search.
2. Inspect the menu link that corresponds to your current page.
3. See if the <a> tag includes the aria-current="page" attribute, and is highlighted in pale green.

Note that this is only for Angular screens.