explore access should be > than metrics layer

[royendo]

Describe the bug
If metrics layer is:

security:
  access: true
  row_filter: > 
        customer_domain = '{{ .user.domain }}' or {{ .user.admin }} 
  exclude:
    - if: "'{{.user.domain}}' != 'rilldata.com'"
      names:
        - transaction_id
        - sales_rep_email
        - sales_rep_domain
        - sales_team
        - internal_flag
        - sensitive_flag

and explore is

security:
  access: "{{ .user.admin }} OR '{{ .user.domain }}' == 'rilldata.com'"

I would expect that explore dashboard would take the higher level of permissions and remove the dashboard however, that is not the case.

To Reproduce
Steps to reproduce the behavior:

1. Set up metrics and explore as above
2. Test with a user that is not admin or rilldata.com
3. see that metrics view gets applied

Expected behavior
The explore should be restricted on the access policy for dashboard.
Use case is that im using the same metrics in a demo project to demonstrate metrics level permissions and explore and found that even setting explore level access is ignored. Will create unique metrics and explore as a workaround

Screenshots