v3.0.0

• New OPAQUE (login cryptography) that is backwards incompatible, so full login reset necessary
• This coincides with the new independent association, so we will ask everyone to make a new account and by that also register to Volta
• We make a request to Volta and put the user in the database, but the changes are not fully reflected everywhere in the code so confirmation is still broken
• Save less information in the database that we have easy access to in Volta
• Add content table