Implement the new account deletion undocumented API

[teolemon]

Description

Implement the new account deletion.
Please create an ad-hoc account for this. DO NOT TRY IT WITH YOUR OWN ACCOUNT
XXXXXXXXX is the username

<form method="post" action="/cgi/user.pl" enctype="multipart/form-data" id="user_form">
<fieldset>
                <legend class="text_warning">Danger Zone</legend>
                <input type="button" name=".delete" class="button text_warning" value="Delete the user" onclick="if ('XXXXXXXXX'.localeCompare(prompt('This will delete your user details and anonymise all of your contributions. Please re-enter your user name to confirm.'),undefined,'base') === 0) {document.getElementById('delete_input').value='on';document.getElementById('user_form').submit();}">
                <input type="hidden" name="delete" id="delete_input">
            </fieldset>

• Blocking Let user remove their account by themselves smooth-app#4162

Part of

• 🎯 What can I work on ? (Dart SDK) #218

[monsieurtanuki]

@teolemon Obviously the first thing would be to check if the user is currently successfully logged in? Or is that done on the server side, somehow?

[teolemon]

It will prevent you from accessing if you're not logged I believe.
https://world.openfoodfacts.net/cgi/user.pl?userid=XXXXX&type=edit&action=display

cc @john-gom who implemented the feature