mgr/dashboard: The performance 'Client Read/Write' widget shows incorrect write values

mgr/dashboard: The performance 'Client Read/Write' widget shows incorrect write values

Fixes: https://tracker.ceph.com/issues/48295
Signed-off-by: Volker Theile <vtheile@suse.com>
(cherry picked from commit d66e684b9ec83cca8a58b0a7b8661c568eb0cf6d)

Conflicts:
	src/pybind/mgr/dashboard/frontend/src/app/ceph/dashboard/health-pie/health-pie.component.scss
	src/pybind/mgr/dashboard/frontend/src/app/ceph/dashboard/health/health.component.html
	src/pybind/mgr/dashboard/frontend/src/app/ceph/dashboard/health/health.component.ts
	src/pybind/mgr/dashboard/frontend/src/styles/defaults/_bootstrap-defaults.scss
Discarded all changes except the relevant code part. The rest was sucessfully backported by b2360b1a6101b5cc61c236047ce7c757fd02c93d.