In order to have RTL mode enabled, uncomment files in the resources/scss/config/default/app.scss file.

// @import "../../scss/rtl/components-rtl";
// @import "../../scss/rtl/layouts-rtl";
// @import "../../scss/rtl/pages-rtl";
// @import "../../scss/rtl/plugins-rtl";

In order to have RTL mode enabled, uncomment files in the resources/js/Layouts/main.vue

 
// document.querySelector("html").setAttribute('dir', 'rtl');