add e2e tests

[rogurotus]

Synopsis

Add e2e desktop tests

Checklist

• Created PR:
  • [x] In draft mode
  • [x] Name contains Draft: prefix
  • [x] Name contains issue reference
  • [x] Has k:: labels applied
  • [x] Has assignee
• [ ] Documentation is updated (if required)
• [ ] Tests are updated (if required)
• [ ] Changes conform code style
• [ ] CHANGELOG entry is added (if required)
• [ ] FCM (final commit message) is posted
  • [ ] and approved
• [ ] Review is completed and changes are approved
• Before merge:
  • [ ] Milestone is set
  • [ ] PR's name and description are correct and up-to-date
  • [ ] Draft: prefix is removed
  • [ ] All temporary labels are removed