Theme: Correctly override active dropdown items in collapsed navbars
Fixes #15046: Add full font overrides for popovers and tooltips
Fixes #14979: Override .jumbotron padding within .container-fluid to match .container
Merge pull request #15018 from twbs/fix-theme-active-items

Theme: Correctly override active dropdown items in collapsed navbars
grunt
Fixes #14965: Reset top border-radii on dropdown menus in fixed bottom navbars