Change public statuses pages to mount the web UI (#19301)

app/views/home/index.html.haml

@@ -1,20 +1,4 @@
 - content_for :header_tags do
-  - if user_signed_in?
-    = preload_pack_asset 'features/getting_started.js', crossorigin: 'anonymous'
-    = preload_pack_asset 'features/compose.js', crossorigin: 'anonymous'
-    = preload_pack_asset 'features/home_timeline.js', crossorigin: 'anonymous'
-    = preload_pack_asset 'features/notifications.js', crossorigin: 'anonymous'
-
   = render partial: 'shared/og'
 
-  %meta{name: 'applicationServerKey', content: Rails.configuration.x.vapid_public_key}
-
-  = render_initial_state
-  = javascript_pack_tag 'application', crossorigin: 'anonymous'
-
-.notranslate.app-holder#mastodon{ data: { props: Oj.dump(default_props) } }
-  %noscript
-    = image_pack_tag 'logo.svg', alt: 'Mastodon'
-
-    %div
-      = t('errors.noscript_html', apps_path: 'https://joinmastodon.org/apps')
+= render 'shared/web_app'

app/views/shared/_web_app.html.haml

@@ -0,0 +1,17 @@
+- content_for :header_tags do
+  - if user_signed_in?
+    = preload_pack_asset 'features/compose.js', crossorigin: 'anonymous'
+    = preload_pack_asset 'features/home_timeline.js', crossorigin: 'anonymous'
+    = preload_pack_asset 'features/notifications.js', crossorigin: 'anonymous'
+
+  %meta{ name: 'applicationServerKey', content: Rails.configuration.x.vapid_public_key }
+
+  = render_initial_state
+  = javascript_pack_tag 'application', crossorigin: 'anonymous'
+
+.notranslate.app-holder#mastodon{ data: { props: Oj.dump(default_props) } }
+  %noscript
+    = image_pack_tag 'logo.svg', alt: 'Mastodon'
+
+    %div
+      = t('errors.noscript_html', apps_path: 'https://joinmastodon.org/apps')

app/views/statuses/show.html.haml

@@ -17,9 +17,4 @@
   = render 'og_description', activity: @status
   = render 'og_image', activity: @status, account: @account
 
-.grid
-  .column-0
-    .activity-stream.h-entry
-      = render partial: 'status', locals: { status: @status, include_threads: true }
-  .column-1
-    = render 'application/sidebar'
+= render 'shared/web_app'