feat: add logout redirect url (#954)

* feat: add logout redirect url

* fix: format issue

apps/nextjs/src/app/[locale]/_client-providers/session.tsx

@@ -1,19 +1,38 @@
 "use client";
 
+import { createContext, useContext, useEffect } from "react";
 import type { PropsWithChildren } from "react";
-import { useEffect } from "react";
 import dayjs from "dayjs";
 
 import type { Session } from "@homarr/auth";
 import { SessionProvider, signIn } from "@homarr/auth/client";
 
-interface AuthProviderProps {
+interface AuthProviderProps extends AuthContextProps {
   session: Session | null;
 }
 
-export const AuthProvider = ({ children, session }: PropsWithChildren<AuthProviderProps>) => {
+export const AuthProvider = ({ children, session, logoutUrl }: PropsWithChildren<AuthProviderProps>) => {
   useLoginRedirectOnSessionExpiry(session);
-  return <SessionProvider session={session}>{children}</SessionProvider>;
+
+  return (
+    <SessionProvider session={session}>
+      <AuthContext.Provider value={{ logoutUrl }}>{children}</AuthContext.Provider>
+    </SessionProvider>
+  );
+};
+
+interface AuthContextProps {
+  logoutUrl: string | undefined;
+}
+
+const AuthContext = createContext<AuthContextProps | null>(null);
+
+export const useAuthContext = () => {
+  const context = useContext(AuthContext);
+
+  if (!context) throw new Error("useAuthContext must be used within an AuthProvider");
+
+  return context;
 };
 
 const useLoginRedirectOnSessionExpiry = (session: Session | null) => {