Refactor codebase to async/await - `m365 teams tab` and `m365 teams user`

This issue is for the refactoring of the `m365 teams tab` and `m365 teams user` commands, more specifically:

- m365 teams tab add
- m365 teams tab get
- m365 teams tab list
- m365 teams tab remove
- m365 teams user app add
- m365 teams user app list
- m365 teams user app remove
- m365 teams user list