Added a smart Changelog :
- Publish the Changelog before the app release. If the release has not
yet been pushed to production, do not display it.
- When the app release is done, make the Changelog available with the
correct date.
- If the Changelog writing is delayed because the release has already
been made, publish it immediately.
- Display everything locally to be able to iterate on the changelog and
have a preview
Added an endpoint for the Changelog
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Co-authored-by: Ady Beraud <a.beraud96@gmail.com>
Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
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