Change the below attribute in the body tag in the src/state/modules/layout.js file to set the detached layout style.

How to add new menu items/change menu items?

To add, change or remove menu items from the left side navigation, simply edit in file src/layouts/main.vue. The change would reflect in all the Vue files automatically. We are using vue-cli which would take care of including the src/layouts/main.vue file content in all Vue pages.