[BUGFIX] Fix SgAjax ViewHelper and introduce a Link ViewHelper

Resources/Public/JavaScript/Likes.js

@@ -37,7 +37,7 @@ export default class Likes {
 			};
 			request.open(
 				'POST',
-				'?eID=sgAjax&extensionName=SgNews&controller=Ajax\\Like&action=addLike&format=json'
+				'?tx_sgajax[extensionName]=SgNews&tx_sgajax[controller]=Ajax\\Like&tx_sgajax[action]=addLike&tx_sgajax[format]=json'
 			);
 			request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
 			request.send(`parameters[newsPid]=${this._newsId }`);