MediaWiki:Gadget-ShowAvatar.js

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const img = $('<img>').attr('src', mw.config.get('wgScriptPath') + '/extensions/Avatar/avatar.php?nocache=true&user=' + mw.user.id());
const link = $('<a>').attr('href', mw.util.getUrl('Special:UploadAvatar')).append(img);
if(window.innerWidth>500){
	$('#pt-userpage-2').before($('<li id="pt-avatar"></li>').append(link));
}