Merge pull request #33121 from tspmelo/wip-angular-9

mgr/dashboard: Update to Angular 9

Reviewed-by: Alfonso Martínez <almartin@redhat.com>
Reviewed-by: Stephan Müller <smueller@suse.com>
Reviewed-by: Laura Paduano <lpaduano@suse.com>

diff --cc src/pybind/mgr/dashboard/tests/test_home.py
Simple merge