Image lazy loading support

[brokiem]

Similar to web image lazy loading https://www.cloudflare.com/learning/performance/what-is-lazy-loading/

Lazy Loading Images is a set of techniques in web and application development that defer the loading of images on a page to a later point in time - when those images are actually needed, instead of loading them up front. These techniques help in improving performance, better utilization of the device’s resources, and reducing associated costs.