QQQ-32: added booleans, cleaned up error handling, fixed infinite loop on unauthorized login, removed all the login buttons, removed redundant qClient functions

src/qqq/components/Buttons/AuthenticationButton/index.tsx

@@ -0,0 +1,17 @@
+import {useAuth0} from "@auth0/auth0-react";
+import React from "react";
+import {Button} from "@mui/material";
+
+function AuthenticationButton()
+{
+   const {loginWithRedirect, logout, isAuthenticated} = useAuth0();
+
+   if (isAuthenticated)
+   {
+      return <Button onClick={() => logout({returnTo: window.location.origin})}>Log Out</Button>;
+   }
+
+   return <Button onClick={() => loginWithRedirect()}>Log In</Button>;
+}
+
+export default AuthenticationButton;