Include link types in generated email

[raboof]

Taking https://lists.apache.org/thread/tljw4msd96k67h2qnt6g5ywt0y964x6m as an example, that currently has:

https://camel.apache.org/security/CVE-2025-66169.html
https://camel.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-66169
https://issues.apache.org/jira/browse/CAMEL-22719

It might be nice to format that as:

Vendor advisory: https://camel.apache.org/security/CVE-2025-66169.html
Project homepage: https://camel.apache.org/
CVE record: https://www.cve.org/CVERecord?id=CVE-2025-66169
Issue tracking: https://issues.apache.org/jira/browse/CAMEL-22719