Move uploader channel name to `og:site_name`

src/invidious/views/watch.ecr

@@ -7,9 +7,9 @@
 <meta name="thumbnail" content="<%= thumbnail %>">
 <meta name="description" content="<%= HTML.escape(video.short_description) %>">
 <meta name="keywords" content="<%= video.keywords.join(",") %>">
-<meta property="og:site_name" content="Invidious">
+<meta property="og:site_name" content="<%= author %> | Invidious">
 <meta property="og:url" content="<%= HOST_URL %>/watch?v=<%= video.id %>">
-<meta property="og:title" content="<%= title %> by <%= author %>">
+<meta property="og:title" content="<%= title %>">
 <meta property="og:image" content="/vi/<%= video.id %>/maxres.jpg">
 <meta property="og:description" content="<%= HTML.escape(video.short_description) %>">
 <meta property="og:type" content="video.other">