Add link preview support

[jq-rs]

Similar to this: https://andrejgajdos.com/how-to-create-a-link-preview/

[jq-rs]

This may help to prefetch the HTML on background:
https://stackoverflow.com/questions/2376471/how-do-i-get-the-web-page-contents-from-a-webview

As a service on background:
String html = new Scanner(new DefaultHttpClient().execute(new HttpGet("www.the url")).getEntity().getContent(), "UTF-8").useDelimiter("\\A").next();