Fix blurhash and autoplay not working on public pages (#11585)

app/views/shares/show.html.haml

@@ -1,5 +1,5 @@
 - content_for :header_tags do
-  %script#initial-state{ type: 'application/json' }!= json_escape(@initial_state_json)
+  = render_initial_state
   = javascript_pack_tag 'share', integrity: true, crossorigin: 'anonymous'
 
 #mastodon-compose{ data: { props: Oj.dump(default_props) } }