Refactor app in to its own slice

slices/main/templates/shared/_bookmark.html.slim

@@ -0,0 +1,20 @@
+div class="mb-4"
+  div class="mb-4"
+    h3 class="text-xl text-blue-600 dark:text-slate-200 mb-2"
+      a class="u-url hover:text-blue-900 hover:dark:text-slate-600" href="/bookmark/#{bookmark.slug}"
+        = "#{bookmark.name} "
+
+    small class="text-gray-400 hover:text-gray-600"
+      a href=bookmark.url
+        = bookmark.url
+        == render("link_arrow")
+  p class="e-content leading-relaxed md:text-lg text-gray-800 dark:text-gray-200"
+    = bookmark.content
+
+  == bookmark.youtube_embed
+
+  p class="text-sm text-blue-400 mb-4"
+    a href="/bookmark/#{bookmark.slug}"
+      time class="dt-published" datetime=bookmark.machine_published_at
+        = bookmark.display_published_at
+  hr