Use html-to-text instead of regex for transform description (#3264)

I try to use only `html-to-text` library

it's will solve issue #3235 

@rejas, @sdetweil, @khassel: Can you do tests with your own feeds?

Thanks for feedbacks

modules/default/newsfeed/newsfeedfetcher.js

@@ -52,10 +52,15 @@ const NewsfeedFetcher = function (url, reloadInterval, encoding, logFeedWarnings
 			const url = item.url || item.link || "";
 
 			if (title && pubdate) {
-				const regex = /(<([^>]+)>)/gi;
-				description = description.toString().replace(regex, "");
 				// Convert HTML entities, codes and tag
-				description = htmlToText(description, { wordwrap: false });
+				description = htmlToText(description, {
+					wordwrap: false,
+					selectors: [
+						{ selector: "a", options: { ignoreHref: true, noAnchorUrl: true } },
+						{ selector: "br", format: "inlineSurround", options: { prefix: " " } },
+						{ selector: "img", format: "skip" }
+					]
+				});
 
 				items.push({
 					title: title,