fix: configure default url templates (#10416)

# Which Problems Are Solved

Emails are still send only with URLs to login v1.

# How the Problems Are Solved

Add configuration for URLs as URL templates, so that links can point at
Login v2.

# Additional Changes

None

# Additional Context

Closes #10236

---------

Co-authored-by: Marco A. <marco@zitadel.com>
(cherry picked from commit 0a14c01412)

internal/api/authz/context_mock.go

@@ -4,6 +4,8 @@ import (
 	"context"
 
 	"golang.org/x/text/language"
+
+	"github.com/zitadel/zitadel/internal/feature"
 )
 
 type MockContextInstanceOpts func(i *instance)
@@ -14,6 +16,12 @@ func WithMockDefaultLanguage(lang language.Tag) MockContextInstanceOpts {
 	}
 }
 
+func WithMockFeatures(features feature.Features) MockContextInstanceOpts {
+	return func(i *instance) {
+		i.features = features
+	}
+}
+
 func NewMockContext(instanceID, orgID, userID string, opts ...MockContextInstanceOpts) context.Context {
 	ctx := context.WithValue(context.Background(), dataKey, CtxData{UserID: userID, OrgID: orgID})