[FR] [Mobile] Ability to start with a completely empty Kanban

### Description

Instead of having to try to delete, rename or hide default sections of the Kanban board, there can be an option for an empty board.

### Impact

Some users may need templates to have an idea of how objects, views or properties are to be used.

Other users prefer to start with a clean slate.
I am in the clean slate group.

Maybe have a section of the app for templates.

In that particular section, each object is available with a corresponding template to get an idea of how to use said object, view or property.

But in each actual object, it is a blank slate for immediate use.

### Additional Context

_No response_