mgr/dashboard: Extract documentation link to a component

mgr/dashboard: Extract documentation link to a component

Fixes: https://tracker.ceph.com/issues/36565
Fixes: https://tracker.ceph.com/issues/43375
Signed-off-by: Tiago Melo <tmelo@suse.com>
(cherry picked from commit e12702a6c71d2050fe3f3991173a60332c5d583a)

 Conflicts:
	src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-list/iscsi-target-list.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/osd/osd-form/osd-form.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/active-alert-list/active-alert-list.component.html
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/active-alert-list/active-alert-list.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/prometheus-list-helper.ts
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/rules-list/rules-list.component.html
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/rules-list/rules-list.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/silence-list/silence-list.component.html
	src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/silence-list/silence-list.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/ceph/nfs/nfs-501/nfs-501.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/core/navigation/dashboard-help/dashboard-help.component.html
	src/pybind/mgr/dashboard/frontend/src/app/core/navigation/dashboard-help/dashboard-help.component.ts
	src/pybind/mgr/dashboard/frontend/src/app/shared/components/components.module.ts
	src/pybind/mgr/dashboard/frontend/src/app/shared/components/grafana/grafana.component.spec.ts
	src/pybind/mgr/dashboard/frontend/src/app/shared/components/grafana/grafana.component.ts
        src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/monitoring-list/monitoring-list.component.html
        src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/monitoring-list/monitoring-list.component.ts
        src/pybind/mgr/dashboard/frontend/src/app/shared/components/doc/doc.component.ts
        src/pybind/mgr/dashboard/frontend/src/app/shared/services/doc.service.spec.ts