v0.1.6 of imgx

Flutter package for loading images from URLs (PNG, JPG, WEBP, GIF) with memory/disk caching, expiration, retry mechanism, and progress tracking for smooth server handling. Changelog excerpt: - Removed the `shared_preferences`dependency. - Disk cache is now a bundled file store in the system temporary directory, written atomically as raw bytes instead of JSON encoded arrays. - Web falls back to an in-memory store instead of `shared_preferences_web`. - Removed the `logger`dependency; errors are reported through `dart:developer`instead. - Removed the `http`dependency; downloads use `dart:io`'s `HttpClient`on native platforms and `XMLHttpRequest`on the web. - Web builds can now cache an[...]