Make compatible with 'Administer users by role' module

Tried to create a patch for this. This creates a new 'Resend registration / welcome email' permission and shows the button on the user edit page based on that permission.

✨ Add permission for resending emails Needs review would solve this I believe, since it provides a separate permission so users do not need to have permissions to edit users.

Improved the logic from ✨ Add permission for resending emails Needs review to make it compatible with other modules, that provide a workaround for the broad 'administer users' permission. Now you can access the feature when you have 'administer users' permission, or the module-specific permission.