Display in patch & publication state in frontend

[sylvestre]

https://code-review.moz.tools/#/stats
all Published are = 0

[abpostelnicu]

This is strange, there are published issues though, take this for example: https://phabricator.services.mozilla.com/D37689#1777928
Maybe it's only a reporting issue?

[La0]

The backend does not yet know how many issues are published, as I am not done with before/after.

Issues are still being published with "in patch" heuristic, everything works as before the frontend switch.

[La0]

• Store in patch & publishable status reported by backend
• Serve it through the API
• Display it through the frontend