Description of the Change

This change fixes the stats and status command in a multisite scenario when there are sites not indexed.

Alternate Designs

Benefits

Correct status about indexes

Possible Drawbacks

Verification Process

1. Have a multisite
2. Have multiple sites
3. Index only one of the sites
4. wp elasticpress stats / wp elasticpress status
5. See the correct information for sites indexed and "is not currently indexed" otherwise.

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

Applicable Issues

Closes: #2276

Changelog Entry

Fixed command stats and status in a multisite scenario.