Add ability to set approval-based registration through tootctl

[ClearlyClaire]

Fixes #18235

Add tootctl settings registrations approved with optional --require-reason switch.

[joenepraat]

Works perfect! Thanks again!

[eWalthert]

Thanks, we where able to set our server to approval. Where can we change the message?
Now it is the standard message:
Why do you want to join? *
This will help us review your application
We see here that it is possible on other mastodon servers.

[limdingwen]

Thanks, we where able to set our server to approval. Where can we change the message? Now it is the standard message: Why do you want to join? * This will help us review your application We see here that it is possible on other mastodon servers.

This requires command line access. This is not yet a feature in the GUI; someone should create an issue for that.

Edit the file <Your Mastodon installation>/config/locales/simple_form.en.yml
Search for This will help us review your application and change it to whatever you want.
Run systemctl reload mastodon-web.

You can't do this if you're using managed hosting. Ask your hosting provider.