Extended account management

[SimonFlapse]

An extension of the account management would be nice to have, especially the ability to create new users without discord integration.

[grilledham]

Just thinking aloud for nice to haves.

• Create new account.
• Delete accounts.
• Suspend accounts.
• Change account roles.
• Change name? Through Discord they get their Discord name rather than their nickname/Factorio name, which they might prefer.