improve: add production stage

src/components/KeycloakCallbacks/Callback.js

@@ -0,0 +1,19 @@
+import React, {useContext, useEffect} from "react";
+import { UserManager } from "oidc-client-ts";
+import {ConfigContext} from "../../ConfigProvider";
+
+
+const Callback = () => {
+    const config = useContext(ConfigContext).config;
+    useEffect(() => {
+        const userManager = new UserManager(config.OIDC_CONFIG);
+        userManager.signinRedirectCallback()
+            .then(() => {
+                window.location.href = "/";
+            });
+    }, []);
+
+    return <div>Logging in...</div>;
+};
+
+export default Callback;