v2.0.0-beta.3

[fix] disable peer if user is disabled (#343)
[feat] improve the handling of OAuth/OIDC admin privileges (#317, #344)
[docs] update documentation, add configuration documentation to wgportal.org
[docs] add REST API documentation to wgportal.org

Full Changelog: v2.0.0-beta.2...v2.0.0-beta.3