Merge pull request #22285 from ricardoasmarques/wip-error-handling

mgr/dashboard: Log frontend errors + @UiController

Reviewed-by: Ricardo Marques <rimarques@suse.com>
Reviewed-by: Volker Theile <vtheile@suse.com>

diff --cc src/pybind/mgr/dashboard/controllers/__init__.py
Simple merge