Adjust self-hosted License

[svenefftinge]

We offer one version to be installed that includes all the code (open-source & ee-licensed).
Without a professional self-hosted license, this should be limited to 10 registered users but include all features.

Professional self-hosted license starts with the 11th member and shall be 35 USD per month.

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We need to update the code accordingly as well as the website.

[svenefftinge]

cc @JohannesLandgraf, @pawlean, @ghuntley

[csweichel]

/schedule

[JanKoehnlein]

/assign @laushinka

[laushinka]

@svenefftinge I looked at the code and I see that there are only two levels: Team and Enterprise. I'm not sure where the changes would be applied and how each subscription correspond?

[svenefftinge]

Yes sorry, the terminology is very inconsistent. "Team" is the free tier, and enterprise is what you get when you have bought a license. So essentially, allow all features in any case but limit the number of users to 10 for "Team" and whatever is encoded in the "Enterprise" license otherwise.