Use resourceful routes for web mailboxes

app/controllers/messages/muted_inboxes_controller.rb

@@ -0,0 +1,10 @@
+module Messages
+  class MutedInboxesController < MailboxesController
+    # Display the list of muted messages received by the user.
+    def show
+      @title = t ".title"
+
+      redirect_to messages_inbox_path if current_user.muted_messages.none?
+    end
+  end
+end