This update simplifies the management of point-of-sale (POS) functionality by separating it from a previous utility. Additionally, the team addressed critical issues related to the 18.0 certification process for the EU IoT scale feature, ensuring compliance. This improves code organization and stability.

In order to simplify reuse of `IotScale` utility, we extract pos logic from it (move it to `ScaleScreen`).

We also fix some `l10n_eu_iot_scale_cert` issues by updating the previously frozen code (for 18.0 certification).