Fix grammar error: Log out

https://pagure.io/freeipa/issue/7258

Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Pavel Vomacka <pvomacka@redhat.com>

install/ui/src/freeipa/widgets/App.js

@@ -285,7 +285,7 @@ define(['dojo/_base/declare',
                     },
                     {
                         name: 'logout',
-                        label: 'Logout',
+                        label: 'Log out',
                         icon: 'fa-sign-out'
                     }
                 ]