improvement: clear auth information from memory when logging out (#5316)

* clears authentications when logout is clicked

* tests the headers sent in the network request

* adds test for multiple api keys

* refactors tests to extract common uses

* correct test message description

Co-authored-by: kyle shockey <kyleshockey@gmail.com>

src/core/components/auth/auths.jsx

@@ -38,6 +38,11 @@ export default class Auths extends React.Component {
       return key
     }).toArray()
 
+    this.setState(auths.reduce((prev, auth) => {
+      prev[auth] = ""
+      return prev
+    }, {}))
+
     authActions.logout(auths)
   }