Fix OpenGraph meta tags

app/views/accounts/show.html.haml

@@ -5,6 +5,12 @@
   %link{ rel: 'salmon', href: api_salmon_url(@account.id) }/
   %link{ rel: 'alternate', type: 'application/atom+xml', href: account_url(@account, format: 'atom') }/
 
+  %meta{ property: 'og:site_name', content: 'Mastodon' }/
+  %meta{ property: 'og:type', content: 'profile' }/
+  %meta{ property: 'og:title', content: "#{@account.username} on #{Rails.configuration.x.local_domain}" }/
+  %meta{ property: 'og:description', content: @account.note }/
+  %meta{ property: 'og:image', content: full_asset_url(@account.avatar.url(:original)) }/
+
 = render partial: 'header'
 
 - if @statuses.empty?

app/views/stream_entries/show.html.haml

@@ -2,12 +2,12 @@
   %link{ rel: 'alternate', type: 'application/atom+xml', href: account_stream_entry_url(@account, @stream_entry, format: 'atom') }/
   %link{ rel: 'alternate', type: 'application/json+oembed', href: api_oembed_url(url: account_stream_entry_url(@account, @stream_entry), format: 'json') }/
 
-  %meta{ name: 'og:site_name', content: 'Mastodon' }/
+  %meta{ property: 'og:site_name', content: 'Mastodon' }/
-  %meta{ name: 'og:type', content: 'article' }/
+  %meta{ property: 'og:type', content: 'article' }/
-  %meta{ name: 'og:title', content: "#{@account.username} on #{Rails.configuration.x.local_domain}" }/
+  %meta{ property: 'og:title', content: "#{@account.username} on #{Rails.configuration.x.local_domain}" }/
-  %meta{ name: 'og:article:author', content: @account.username }/
+  %meta{ property: 'og:article:author', content: @account.username }/
-  %meta{ name: 'og:description', content: @stream_entry.activity.content }/
+  %meta{ property: 'og:description', content: @stream_entry.activity.content }/
-  %meta{ name: 'og:image', content: @stream_entry.activity.is_a?(Status) && @stream_entry.activity.media_attachments.size > 0 ? full_asset_url(@stream_entry.activity.media_attachments.first.file.url( :small)) : full_asset_url(@account.avatar.url( :original)) }/
+  %meta{ property: 'og:image', content: @stream_entry.activity.is_a?(Status) && @stream_entry.activity.media_attachments.size > 0 ? full_asset_url(@stream_entry.activity.media_attachments.first.file.url( :small)) : full_asset_url(@account.avatar.url(:original)) }/
 
 .activity-stream.activity-stream-headless
   = render partial: @type, locals: { @type.to_sym => @stream_entry.activity, include_threads: true }