Comment 1 for bug 2057432

Branch adding shadows to both the dropdowns and tabs, and tightening up the tab spacing a little (since they're easier to tell apart when they have borders): https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/sleary/LP2057432-dropdown-tab-shadows

Screenshot attached, showing how this looks in the nav menu and the catalog record tabs.