Program Status widgets to use a single REST API call to 'locations' endpoint

1. Description

The Program status widget (patient dashboard) makes a REST call to fetch locations.
When several program widgets are loading on the same page and that there are many locations (eg. >1000), this can slow down the loading of the page.

2. Suggested solution

This ticket will ensure that only one REST call is made to the 'location' REST endpoint for all the Program Status widgets on the same patient dashboard.

3. Acceptance Criteria

TBC