[Workspace] User setting page

[Hailong-am]

Is your feature request related to a problem? Please describe.

Add a new user settings page which allows user to set default workspace

workspace enabled

workspace not enabled

Describe the solution you'd like

A clear and concise description of what you want to happen.

Describe alternatives you've considered

A clear and concise description of any alternative solutions or features you've considered.

Additional context

Add any other context or screenshots about the feature request here.