Decide how requests to the discussion API are handled

[mxdvl]

There are two options for making calls to the discussion API, which must be authenticated:

1. use Bridget to make the calls and pass the response to web view
2. use Bridget to pass the authentication down to the web view which makes the calls

Option 1 is more similar to other authenticated requests in the Apps
Option 2 is closer to how the web currently handles things

Existing stub in iOS: https://github.com/guardian/ios-live/blob/7c7762c139560c2b3ba0e7f56233c51dfa3de22d/GLA/GLA/Classes/ARArticleViewController%2BBridget.swift#L197-L207

Existing sub in Android: https://github.com/guardian/android-news-app/blob/352429b2735371051d4d7a00c6ddc73320b6f37f/android-news-app/src/main/java/com/guardian/feature/renderedarticle/bridget/DiscussionImpl.kt#L10-L35

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We will probably want to implement useReducer with a different reducer implementation for each platform.

[BenSullivan-iOS]

I have discussed this with the iOS team, we have a slight leaning towards option 2, however, this may cause complications when it comes to tracking

[shesah]

WebEx leaning towards option one - one to discuss with the Apps team and commit to an approach

[JamieB-gu]

We're going with option 1: ask the native app to make the calls via Bridget.