SmartPack/SmartPack-Kernel-Manager v13.0

Release tag: v13.0

on GitHub

Added a switch to disable on-boot service in the Settings page.

Removed copyright text.

Added an initial version of Polish translations (credits: @Fruity-0).

Updated Portuguese (Brazilian), Russian and Chinese (Simplified) translations.

Updated libsu to v3.0.2.

Updated build tools and dependencies.

Miscellaneous changes.