UI: Add support for "More Info" link from service

(Jim) Allows the ability to get a link from the service's settings about
a specific service selection the user chooses and display it as a "More
Info" button that the user can click to find out more information about
that particular service.
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Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f