Added hopframe backend

SpotiParty.Web/Components/Pages/LoginPage.razor

@@ -1,17 +1,15 @@
 @page "/login"
 @using SpotiParty.Web.Services
 
-<a class="button-primary" href="@_uri">Mit Spotify einloggen</a>
-
 @inject AuthorizationHandler AuthHandler
+@inject NavigationManager Navigator
 
 @code {
 
-    private Uri _uri = null!;
-
     protected override async Task OnInitializedAsync() {
         await base.OnInitializedAsync();
-        _uri = await AuthHandler.ConstructLoginUri();
+        var uri = await AuthHandler.ConstructLoginUri();
+        Navigator.NavigateTo(uri.ToString(), forceLoad: true);
     }
 
 }