v1.3.0 of crokta_liveness

A Flutter SDK for Face Liveness Verification, passive/active liveness UI. Changelog excerpt: - API Documentation: Added comprehensive documentation coverage (///doc comments) across all public API surfaces, including LivenessSDK, LivenessConfig, LivenessResult, LivenessStatus, LivenessEnvironment, and LivenessProvider. - Static Analysis: Silenced deprecation warnings (e.g., WillPopScope, onPopInvoked, and withOpacity) via target lint overrides to achieve a 100% clean score on the pub.dev analyzer. - Config Initialization: Refactored `LivenessSDK.initializ[...]