Image get squashed in mail

<img width="1432" height="1248" alt="Image" src="https://github.com/user-attachments/assets/2a602669-4e3e-460b-90a8-05c7b17e397b" />

In thunderbird the logo looks fine, but gmail  changes the image. Also, the name of the service seems to be missing. This is caused by a missing `DisplayName` in manage. Add a fallback to `name:en` if the displayname is empty