Access to TFA page is denied depending on entity/database internals

Problem/Motivation

Access to user/{user}/security/tfa is denied depending on user entity or database types.

The $is_self = $account->id() === $target_user->id(); line in \Drupal\tfa\Controller\TfaLoginController::accessSelfOrAdmin expects id calls on both sides to be the exact same type, however depending on the storage backend, or if entity class is overridden with strict types, either side may not be the same type.

An ID call may return a numeric string or strict integer.

Steps to reproduce

Use a database backend which returns true ints.

Or, create a bundle class with id(): int method override

Proposed resolution

The equality operator should either be less strict ==, or preferably each side coerce to integer before comparison.

Remaining tasks

Implement

User interface changes

Nil

API changes

Nil

Data model changes

Nil