Kanban list view for CRM

Hey guys, It's good to be here, I hope I can get more motivation and inspiration from this community, thanks to you all.

# Why Did I Design It This Way
1. Black & White background visually separates the navigation area and current content page, makes elements feel more organized.
2. Screens are always wide, so the navigation bar is placed on the side.
3. The secondary menu bar can collapsed manually.