Merge PR #52258 into main

* refs/pull/52258/head:
	client: check mds down status bofore getting mds_gid_t from mdsmap
	mgr/dashboard: allow sending back error status code fetching clients fails

Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Rishabh Dave <ridave@redhat.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Nizamudeen A <nia@redhat.com>
Reviewed-by: Dhairya Parmar <dparmar@redhat.com>

diff --cc src/client/Client.cc
Simple merge

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