Summary:
- Add org-wide currentSort and currentView, saved as user preferences.
- Add per-workspace currentSort and currentView, backed by localStorage.
- Move localStorage-based observables to a separate file.
- Move hard-coded data about example docs to a separate file.
- Add UI for toggling sort and view mode.
- Removed unused features of buttonSelect to simplify it,
and added support for light style of buttons.
- Added `parse` helper method to StringUnion, and use it in a few places where
it simplifies code.
- Set `needRealOrg: true` in HomeDBManager.updateOrg() to fix saving prefs for
mergedOrg.
Test Plan: WIP: Fixed some affected tests. New tests not yet written.
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D2587
Summary: This moves enough server material into core to run a home server. The data engine is not yet incorporated (though in manual testing it works when ported).
Test Plan: existing tests pass
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2552
