Director can see list teachers

[DenisZackharov]

Summary

None.

How it works

https://user-images.githubusercontent.com/78980031/226123946-9cec72b8-60fb-45df-ad09-95230bb192f2.mov

Test plan

List of steps to manually test introduced functionality:

1. Run server with bin/dev
2. Login with credentials: director@example.com, 123456
3. Click on company name
4. Click on Staff
5. You can see list of teachers

Checklist:

• [x] I have performed a self-review of my own code
• [x] I have added tests for new functionality
• [x] My pull request is shorter than 300 lines

Deploy notes

Notes regarding deployment the contained body of work. These should note any db migrations, ENV variables, services, scripts, etc.