Convert RSS feed handling to Typescript

Author: eritbh

src/bot/events/rssFeeds.js src/bot/events/rssFeeds.tssrc/bot/events/rssFeeds.js renamed to src/bot/events/rssFeeds.ts

@@ -1,14 +1,13 @@
 import log from 'another-logger';
 import {EventListener} from 'yuuko';
-import {NewsChannel} from 'eris';
+import {MessageContent, NewsChannel} from 'eris';
 import Parser from 'rss-parser';
 const rssParser = new Parser();
 
 /**
  * Builds a message content object to use when posting a feed item.
- * @param {object} post The parsed feed entry to generate an embed for.
- * @param {string} feedURL The URL of the source of the content.
- * @returns {object}
+ * @param post The parsed feed entry to generate an embed for.
+ * @param feedURL The URL of the source of the content.
  */
 function buildRssMessageContent (post, feedURL) {
 	let tempTitle = post.title;
@@ -18,7 +17,7 @@ function buildRssMessageContent (post, feedURL) {
 	}
 
 	// build embed
-	const contentObject = {
+	const contentObject: MessageContent = {
 		content: post.link,
 		embed: {
 			author: {