fix: remove content property to prevent double video embed

The `content` property caused the video to render twice: once from
the markdown body and once from the `likeOf` frontmatter in the
Eleventy template. Likes now rely solely on `like-of` + `name`.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/likes-sync.js

@@ -190,10 +190,6 @@ export async function syncLikes({ db, youtubeConfig, publication, postsCollectio
         "mp-slug": slug,
         "like-of": videoUrl,
         name: `${video.title} - ${video.channelTitle}`,
-        content: {
-          text: `${video.title} - ${video.channelTitle}`,
-          html: `<a href="${videoUrl}">${escapeHtml(video.title)}</a> - ${escapeHtml(video.channelTitle)}`,
-        },
         published: new Date().toISOString(),
         url: postUrl,
         visibility: "public",
@@ -300,12 +296,4 @@ export function startLikesSync(Indiekit, options) {
     run().catch(() => {});
     setInterval(() => run().catch(() => {}), interval);
   }, 15_000);
-}
-
-function escapeHtml(str) {
-  return String(str)
-    .replace(/&/g, "&amp;")
-    .replace(/</g, "&lt;")
-    .replace(/>/g, "&gt;")
-    .replace(/"/g, "&quot;");
-}
+}