feat(webhook_listeners): Enable the app by default

[come-nc]

trafficstars

• Resolves: #

Summary

Enable the app webhook_listeners by default.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• [ ] Tests (unit, integration, api and/or acceptance) are included
• [ ] Screenshots before/after for front-end changes
• [ ] Documentation (manuals or wiki) has been updated or is not required
• [ ] Backports requested where applicable (ex: critical bugfixes)

[come-nc]

/backport to stable30

[AndyScherzinger]

I am fine either way, but didn't we decide to not enable it by default?

[bigcat88]

We have similar functionality in AppAPI, and in order not to duplicate it, we plan to deprecate a more truncated copy of this functionality in AppAPI and use the webhooks_listeners application for this, which is written much better.