Add AuthContext as a provider

src/App.js

@@ -92,6 +92,7 @@ const signIn = ( email, password ) => {
     return (
       <div className="App">
         <Header items={nav} />
+        <AuthContext.Provider>
         <Routes>
           <Route path="/" element={<Home greeting="Hey you're at home!" />} />
           <Route path="/about" element={<About greeting="Hey you, this is about page!" handler={saySomething} />} />
@@ -100,6 +101,7 @@ const signIn = ( email, password ) => {
           <Route path="/signout" element={ <Signout handler={logOut}/> } />
           <Route path="/signin" element={ <Signin handler={signIn} authstate={auth}/> } />
         </Routes>
+        </AuthContext.Provider>
       </div>
     );
   }