Test: Link protection

[octref]

Refs: #78125

• macOS @isidorn
• Linux @mjbvz
• Windows @stevencl

Complexity: 2

Description: All outgoing links in workbench should be covered by this link protection mechanism, including hover, completion, terminal, output, debug console, webview...

Please test that:

• Any action in workbench that would open a link in browser is covered by this feature
• The prompt's description and actions makes sense
• Configure Trusted Domains from the prompt or command palette work as expected
• You can't bypass the user configured trusted domains list. For example, if https://{authority} is configured, http://{authority}, https://www.{authority} etc are still blocked.
• localhost and 127.0.0.1 are whitelisted

[isidorn]

I like how this behaves, nice job.