User Management v2

• The key feature here is that you are now able to remove / add / edit users from the admin panel.
• New role added creator, this role do not have any admin rights, but are able to create secrets if hemmelig is set to read only mode.

What's Changed

• feat: add initial user management tab by @bjarneo in #176

Full Changelog: v5.2.2...v5.3.0