pgAdmin 4 commit: Ensure that maintenance job should be worked properly

Ensure that maintenance job should be worked properly for indexes under a materialized view. Fixes #4223.

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=9d08776824c8ec5166a52c6b98708f3496a6ee16

Modified Files
--------------
docs/en_US/release_notes_4_22.rst                      | 1 +
web/pgadmin/static/scss/_pgadmin.style.scss            | 3 +++
web/pgadmin/tools/maintenance/static/js/maintenance.js | 2 ++
3 files changed, 6 insertions(+)