Merge branch '500217-reorganize-container-registry-section' into 'master'

Modify container registry project settings section with feature flag

See merge request !175502



Merged-by: Jacques Erasmus <jerasmus@gitlab.com>
Approved-by: Gina Doyle <gdoyle@gitlab.com>
Approved-by: Oiza Baiye <obaiye@gitlab.com>
Approved-by: Jacques Erasmus <jerasmus@gitlab.com>
Reviewed-by: Jacques Erasmus <jerasmus@gitlab.com>
Reviewed-by: Rahul Chanila <rchanila@gitlab.com>
Reviewed-by: Oiza Baiye <obaiye@gitlab.com>
Co-authored-by: Rahul Chanila <rchanila@gitlab.com>