v3.0.0 of s_screenshot

A powerful Flutter package for capturing high-quality screenshots of widgets with multiple output formats (base64, bytes, file) and configurable options. Changelog excerpt: - package no longer holds the source code for it, but exports/exposes the s_packagespackage instead, which will hold this package's latest source code. - The only future changes to this package will be made via s_packagespackage dependency upgrades, in order to bring the new fixes or changes to this package - dependent on s_packages: ^1.1.2