Normalize the issuer assigned to the Contentful provider

src/OpenIddict.Client.WebIntegration/OpenIddictClientWebIntegrationProviders.xml

@@ -563,7 +563,7 @@
 
   <Provider Name="Contentful" Id="3d820b1e-33c7-4934-a783-48745343d53b"
             Documentation="https://www.contentful.com/developers/docs/extensibility/oauth/">
-    <Environment Issuer="https://be.contentful.com">
+    <Environment Issuer="https://be.contentful.com/">
       <Configuration AuthorizationEndpoint="https://be.contentful.com/oauth/authorize"
                      TokenEndpoint="https://be.contentful.com/oauth/token"
                      UserInfoEndpoint="https://api.contentful.com/users/me" />

src/OpenIddict.EntityFrameworkCore/Stores/OpenIddictEntityFrameworkCoreTokenStore.cs

@@ -595,7 +595,6 @@ public class OpenIddictEntityFrameworkCoreTokenStore<
     public virtual async IAsyncEnumerable<TToken> ListAsync(int? count, int? offset,
         [EnumeratorCancellation] CancellationToken cancellationToken)
     {
-
         var context = await Context.GetDbContextAsync(cancellationToken);
 
         var query = context.Set<TToken>()