Refactor app in to its own slice

slices/main/views/pages/show.rb

@@ -0,0 +1,21 @@
+module Main
+  module Views
+    module Pages
+      class Show< Main::View
+        include Deps["repos.page_repo", renderer: "renderers.markdown"]
+
+        expose :page_content do |page|
+          renderer.call(content: page.content)
+        end
+
+        expose :page_name do |page|
+          page.name
+        end
+
+        private_expose :page do |slug:|
+          page_repo.fetch!(slug: slug)
+        end
+      end
+    end
+  end
+end