Добавьте файлы проекта.

PlaylistShared.Pwa/Pages/Logout.razor

@@ -0,0 +1,12 @@
+@page "/logout"
+@using PlaylistShared.Pwa.Services
+@inject AuthStateProvider AuthProvider
+@inject NavigationManager Navigation
+
+@code {
+    protected override async Task OnInitializedAsync()
+    {
+        await AuthProvider.MarkUserAsLoggedOut();
+        Navigation.NavigateTo("/");
+    }
+}