Refactor medic code querying the freetext views to hit the API/Nouveau index instead

[m5r]

What feature do you want to improve?
Code querying the freetext views will fail once we ship Nouveau (#9542) since we're deleting those views and replacing them with Nouveau indexes.

Describe the improvement you'd like
The easy fix is to replace the URL to those views by the URL to the replacing indexes and change the query to satisfy Nouveau's query format. The impacted repos might want to support both querying the old views and the new indexes while deployments upgrade. This can be done by checking for the existence of the views or by looking up the CHT instance's version.

The ideal fix is for those impacted repos to query the CHT using cht-datasource and/or relying only on APIs exposed by the CHT instead.

Additional context
This should include every repo outside of cht-core that needs updating.
https://github.com/search?q=org%3Amedic+freetext+%28language%3AJavaScript+OR+language%3ATypeScript%29++NOT+repo%3Amedic%2Fcht-core+NOT+repo%3Amedic%2Fcht-accelerator+NOT+repo%3Amedic%2Fcht-docs+NOT+repo%3Amedic%2Fchromium-crosswalk&type=code