General: Use client projects getter

[iLLiCiTiT]

Brief description

Use get_projects from openpype.client instead of projects method from AvalonMongoDB.

Description

Use get_projects function in code to query projects.

Additional information

I didn't notice this method during query getter refactor.

Testing notes:

Inactive projects should be hiddedn as expected

• [ ] Settings should load projects
• [ ] Sync server should load projects and sync properly
• [ ] Library loader should show right projects (active library projects in hosts and all active projects from tray)
• [ ] Kitsu (zou) sync should work
• [ ] Launcher is showing active projects
• [ ] Project manager is showing active projects
• [ ] Standalone publisher is showing active projects