Add ADO Server integration support

[justinrobots]

Verification steps

• branch PR
  
  

  • If branch has closed PRs only, it shows one of them (most recent)

• 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

• Issues

  • You can associate an issue with the current branch on Home View
  • You can associate another issue with a branch on Branches View
    
  • Associated issues are displayed on Home View
    
  • Issue links work: open the right pages on remote
  • "Start Work" flow works

• Rest of Home

  • Branch PR is shown on Home
  • If branch has closed PRs only, it shows one of them (most recent), same as on Branches View.

• Compare links work ("Open comparison on remote")

• check that all above still works for Azure Cloud

• Check for possible breaking changes of the Library update. We've updated the library from 0.28.5 to 0.29.6, so we want to test the affected areas:

  • Bitbucket Server: there was an update in providerUtils/bitbucketServer.ts/normalizePermissions(). Probably, refactoring. It was an update of showing user avatars.
    • New method getRepoPermissionsForUsername and getAccountsForProject have been added. We might want to review our code to replace some pieces of our custom implementation with the library calls.
  • Azure DevOps Cloud: Server appeared so the logic of defining the base URL has been changed. Also retrieval user's organizations and collections might be affected.
  • GitLab: few changes related to avatars

[sergeibbb]

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