🐛 Bug Fix

• #4145 fix(Sidebar): fix a collision betweenchildren and shorthand props (@layershifter)
• #4112 fix(Feed|CardGroup|ItemGroup|Search): change key checks from falsy to nullish semantics (@noinkling)
• #4144 fix(Sidebar): fix issue with Portals in React 17 (@layershifter)

Committers: 2

• Malcolm (@noinkling)
• Oleksandr Fediashov (@layershifter)