Function extractIcons

extractIcons(input: DocumentInput): IconsMetadata
Extract icons metadata from HTML.
Parameters
- input: DocumentInput
  Parsed HTML document or raw HTML string
Returns IconsMetadata
Icons metadata
Remarks
Extracts all icon-related metadata including favicons, Apple touch icons, Safari mask icons, and Microsoft tile configuration.
Example
```
// With parsed document (recommended for multiple extractions)
const doc = parseHTML(htmlString);
const icons = extractIcons(doc);

// Or directly with HTML string
const icons = extractIcons(htmlString);
```
- Defined in src/metadata/icons/extract.ts:39