Add Dropdown to App Overview with different options

[cstenglein]

See #8

- Buttons
  - Update
  - Install
  - Remove
  - Start
  - Stop
  - See logs
  - Restart
  - Possibly more buttons to be free implemented later (renew tor address, enable client auth, but this is advaced for another stage)

Will need additional endpoints for it in https://github.com/fusion44/blitz_api for most of it