finish login, logout, session context

frontend/src/hooks/sessionRedirect.ts

@@ -0,0 +1,14 @@
+import { useEffect, useContext } from "react";
+import { useNavigate } from "react-router-dom";
+import { SessionContext } from "../contexts/session";
+
+export const useSessionRedirect = () => {
+  const session = useContext(SessionContext);
+  const navigate = useNavigate();
+  // Redirect to home if session is defined
+  useEffect(() => {
+    if (session !== undefined) {
+        navigate('/');
+    }
+  }, [session, navigate])
+}