Allow translations of changelogs

According to the dev documentation, add developers can provide a changelog to their users. This will (eventually) be shown to the users and can be localized/translated.

While app devs typically do not need to worry about the translations due to the nice translation system and integration into transifex, the changelog is currently handled manually. While this is cumbersome it also includes the risk that the translations are not present or not of high quality (as done by the devs themselves).

I would add a feature request to allow devs to opt-in to (user) changelog translations.

For simpler parsing, this might be done using something like po4a that allows to gettextify different files. Alternatively, one could think of a way to register plain synchronization endpoint and let the devs create an appropriate integration.

I just want to put this here into discussion. If it is considered superior to use e.g. intro.js and create the user documentation using plain js (which is then translatable as normal in-app translations).

Start with the linked developer documentation and compare the proposed po4a and synchronization-endpoint approaches. Done means the issue has a decided opt-in translation workflow for app developers and a clear way for translated changelogs to reach users.