DB page - role configuration, collaborators, roles

[pavish]

Implements the Settings tab within the Database page

Under the hood, it implements the base for the new store structures and the required model classes. It does not replace existing stores.

The PR focuses on getting all functionality working and does not accurately follow the layout and colors from the figma design. This was discussed and approved in the design meetings.

The Roles page actions throw an error from the server since the RPC functions are not yet implemented on the backend.

Screenshots

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Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the develop branch of the repository
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no
  visible errors.

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[pavish]

I'm going to be merging this without review once the workflows pass since @seancolsen is off. This was discussed with Sean. The changes would be reviewed retroactively once he's back.