fedimbed: add timestamps

src/modules/fedimbed.js

@@ -143,6 +143,7 @@ async function processUrl(msg, url) {
           url: postData2.account.url,
           avatar: postData2.account.avatar,
         };
+        timestamp = postData2.created_at;
         for (const attachment of postData2.media_attachments) {
           attachments.push({
             url: attachment.url,
@@ -159,6 +160,7 @@ async function processUrl(msg, url) {
   } else {
     content = postData.content;
     cw = postData.summary;
+    timestamp = postData.published;
     for (const attachment of postData.attachment) {
       attachments.push({
         url: attachment.url,
@@ -229,10 +231,11 @@ async function processUrl(msg, url) {
   const baseEmbed = {
     color,
     url,
+    timestamp,
     description: desc,
     title: `${author.name} (${author.handle})`,
-    author: {
-      name: platformName,
+    footer: {
+      text: platformName,
     },
     thumbnail: {
       url: author.avatar,