mgr/dashboard: set bucket policies

mgr/dashboard: set bucket policies

- Adds support to set bucket policies through the Dashboard.
- Rename rgw bucket policy from 'policy' to 'bucket policy' and tab 'Permissions' to 'Policies'
- Fix: hide Tags when none are present on bucket list details and sets bucket form dirty after deleting a tag
- Added service to manage the formatting of a textArea that works with json

Signed-off-by: Pedro Gonzalez Gomez <pegonzal@redhat.com>
Fixes: https://tracker.ceph.com/issues/63942