Merge remote-tracking branch 'origin/main' into main

src/covid19/blueprints/admin/admin_views.py

...covid19/blueprints/admin/templates/admin/admin_tasks.html

...rints/admin/templates/admin/navigation/admin_navtabs.html

...ovid19/blueprints/admin/templates/admin/system_tasks.html

.../application/templates/application/navigation/navbar.html

...application/templates/application/navigation/navtabs.html

src/covid19/blueprints/owid/owid_service_update.py

src/covid19/blueprints/owid/owid_views.py

src/covid19/blueprints/owid/templates/owid/owid_tasks.html

src/covid19/blueprints/who/templates/who/who_tasks.html

src/covid19/blueprints/who/who_model.py

src/covid19/blueprints/who/who_service.py

src/covid19/blueprints/who/who_service_update.py