feat(cropper): expand image export API

packages/cropper/docs/en-US/overview.mdx

@@ -21,9 +21,12 @@ toc:
 - Pinch, wheel, double-click, and keyboard zooming.
 - Controlled and uncontrolled state.
 - Rectangular and circular viewports.
+- Numeric and `"width:height"` viewport ratios.
+- URL and local `Blob` image sources with automatic object URL cleanup.
 - Resize-aware image constraints.
 - Standalone pure geometry functions.
-- Canvas export to PNG, JPEG, or WebP Blob.
+- Imperative reset, crop-area access, and export through a component ref.
+- Canvas export to PNG, JPEG, or WebP Blob/base64 output.
 
 ## Data model {#data-model}