feat(#8462): support exporting users devices details

[m5r]

Description

#8462

Docs PR: medic/cht-docs#1290

As per #8462 (comment), this PR adds a way for admins to export user devices details to CSV. It builds on the data exporter already present in the API that comes with streaming and pagination built in.
I added the minimum amount of code in the admin app to let admins use it, they will find in the "User devices" tab of the export page.

There was some discussion about this in the issue but the new CouchDB view used to get every user's most recently used device's telemetry entry is kind of slow. It's not terrible but it's not ideal either and I don't see a faster way to do it, let me know if you have some ideas!
Side note about couchdb views DX, they shipped a new JS engine with couch 3.0 that supports ES6 so I reflected that in our eslint config.

Note: I wanted to implement an e2e test that generates telemetry entries and then export users devices from the admin app but users telemetry data gets saved to their own medic-${username}-meta db before getting replicated to the common medic-users-meta db, where the exporter gets its data from. This replication process happens once a day at 2am and I couldn't come up with a proper way to make that happen within a testable timeframe.
The closest I got to a "proper solution" is by duplicating some code from sentinel into our test to force a replication before exporting the csv.
Since this feature is planned to evolve towards a smarter way to tell admins "that user needs to upgrade this thing", we will revisit how/what we test this feature.

To do before merging:

• [] make sonar accept the "5.3% duplication on new code" it caught, it's only admin-related code for the new tab
• [] add a new can_export_devices_details permission - still open to suggestions for a different permission name

Code review checklist

• Readable: Concise, well named, follows the style guide, documented if necessary.
• Documented: Configuration and user documentation on cht-docs
• Tested: Unit and/or e2e where appropriate
• Internationalised: All user facing text
• Backwards compatible: Works with existing data and configuration or includes a migration. Any breaking changes documented in the release notes.

Compose URLs

If Build CI hasn't passed, these may 404:

• Core
• CouchDB Single
• CouchDB Cluster

License

The software is provided under AGPL-3.0. Contributions to this project are accepted under the same license.

[m5r]

@jkuester thanks for catching the date comparison bug. I couldn't reproduce the admin UI bug you mentioned but my guess is the export is taking a looong time and there is just no feedback on the UI to reflect that so I went ahead and added some.
We already had a property in the export template to give a "loading" feedback but the value it relied on was never set.

[jkuester]

Very nice! Got a number of minor questions/comments that I left in-line. Regarding e2e tests, I wonder if it would be sufficient to just add a test or two to tests/integration/api/controllers/export-data.spec.js. Seems like an integration test where we can manually create the medic-users-meta data is probably the best approach to testing this functionality (since we don't want to wait for Sentinal).

Also, don't forget a cht-docs PR for the new API!

[latin-panda]

Nice job! Josh cover a lot already, I just added some minor ones I spotted

[m5r]

I opened a docs PR to document this new route

[latin-panda]

LGTM! Just waiting for the translations

BTW I tried to test it but when downloading the file I got: missing_named_view
What are the steps to test it from a fresh instance?

[m5r]

@latin-panda I think you just need to run npm run build-ddocs to push the view to couch

[lorerod]

We have the basic cover with the unit test added to this PR.
As suggested in the PR comment, we can evaluate e2e implementation in future iterations.

[latin-panda]

LGTM!

[latin-panda]

Nice improvements! Just minor comments below

[jkuester]

@latin-panda Could I get one more quick review! The main change is a small behavior switch based on Gareth's feedback.

[latin-panda]

LGTM! Thanks Josh!