Support other url protocols or patterns for clickable links

[alexlehm]

Description of the new feature/enhancement

I would like to be able to have clickable links for gopher or gemini links, maybe also for xmpp links in the terminal text

Proposed technical implementation details (optional)

The pattern what links are clickable currently matches http and https links and is hardcoded into the code, it would be better if this were settable in the json file so that one can define other url patterns to be matched.

[zadjii-msft]

Hey wadda ya know, we did this in #14993.

/dupe #7562

[microsoft-github-policy-service]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!