[name].layout.js
In Rasengan.js, to create a layout, you have to create a file that follow the following name pattern:
[name].layout.jsA layout is UI that is shared between routes.
Example
Based on the convention, we have juste replace the [name] by app in the convention name and we got app.layout.js.
Following the convention, is not required but, keeping that convention will help you recognizing the purpose of each files you will have.
