Add ADO Server integration support

[justinrobots]

Verification steps

• branch PR
  
  

• commit PR

  • also check that it does not break commit PRs for Azure Cloud
    

• links work

  • commit link in the pop-up
    
  • open repository on remote
  • open branch on remote
  • open commit on remote
  • open commit file on remote
  • open PR on remote
  • open comparison on remote

• autolinks in commit pop-up
  

  • PRs (template: PR <num>)
  • Issues (template: #<num>)
  • check that links of Issues and PRs work in pop-ups (both: under "#" and under their visible titles)
  • check that autolinks of other integration types are not borken

• Launchpad

  • you see open PRs categorized
  • pin/unpin, snooze/unsnooze work and persist after reloading the window
  • a PR URL goes go to the right place on remote
  • switch to Branch works
  • open in Worktree works
  • "merge" works

[sergeibbb]

@justinrobots Does it mean Azure DevOps Server (formerly TFS)?