Missing admin-api base tag in cockpit

Reproduce:

• Add admin-api="some_url/api/admin/" to the base tag in the cockpit index html

Expected:

• Provided admin api endpoint is used

Observed:

• admin api endpoint is determined based on the cockpit-api endpoint

Hint:

• In tasklist, there is a separate admin-api entry in the base tag. This entry is missing in Cockpit
• Cockpit has hardcoded admin path based on the cockpit-api entry, see here