[Workspace] Enable direct query connections to support in workspace

[yubonluo]

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

Enable direct query connections to support in workspace

• Users can switch between the OpenSearch connectionsand Direct query connections buttons to display different types of data sources
• Users(dashboard admin) can assign/unassign OpenSearch connections/Direct query connections data source
• When user unassign OpenSearch connections , all the related Direct query connections will be unassigned.
• No dashboard admin can not assign/unassign datasource

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
#4944