website/integrations: Fix Kimai Group mapping attribute (#2565)

* Fix: Group mapping attribute

Missed it before, sorry.
Now it works properly

* Fix: branding

Co-authored-by: hexx.one <dominics.pc@gmail.com>

website/integrations/services/kimai/index.md

@@ -45,7 +45,7 @@ To get the value for `x509cert`, go to *System* > *Certificates*, and download t
 kimai:
   saml:
     activate: true
-    title: Login with SAML
+    title: Login with authentik
     mapping:
       - {
           saml: $http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress,
@@ -56,13 +56,13 @@ kimai:
           kimai: alias,
         }
     roles:
-      attribute: Roles
+      attribute: http://schemas.xmlsoap.org/claims/Group
       mapping:
       # Insert your roles here (ROLE_USER is added automatically)
         - { saml: admin.group, kimai: ROLE_ADMIN }
     connection:
       # You SAML provider
-      # Your Authentik instance, replace https://authentik.company with your authentik URL
+      # Your authentik instance, replace https://authentik.company with your authentik URL
       idp:
         entityId: "https://authentik.company/"
         singleSignOnService: