Refactor to just CommandBar and GlobalState (#337)

* Refactor to just CommandBar and GlobalState

* @Irev-Dev review: consolidate uses of useContext

src/components/AppHeader.tsx

@@ -2,7 +2,7 @@ import { Toolbar } from '../Toolbar'
 import UserSidebarMenu from './UserSidebarMenu'
 import { ProjectWithEntryPointMetadata } from '../Router'
 import ProjectSidebarMenu from './ProjectSidebarMenu'
-import { useAuthMachine } from '../hooks/useAuthMachine'
+import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
 
 interface AppHeaderProps extends React.PropsWithChildren {
   showToolbar?: boolean
@@ -18,7 +18,11 @@ export const AppHeader = ({
   className = '',
   enableMenu = false,
 }: AppHeaderProps) => {
-  const [user] = useAuthMachine((s) => s?.context?.user)
+  const {
+    auth: {
+      context: { user },
+    },
+  } = useGlobalStateContext()
 
   return (
     <header