Refactor app in to its own slice

slices/main/actions/workouts/index.rb

@@ -0,0 +1,13 @@
+module Main
+  module Actions
+    module Workouts
+      class Index < Action
+        include Deps["views.workouts.index"]
+
+        def handle(req, res)
+          res.render index
+        end
+      end
+    end
+  end
+end