The BookChoix theme provides an off-canvas sidebar feature that is visible on both the WooCommerce shop and single product pages.
To customize this sidebar, you can access the WordPress Widgets page by navigating to Appearance -> Widgets menu. From there, you can easily add widgets of your choice by dragging and dropping the widgets into the Off-canvas sidebar location.
By default, this sidebar does not display any widgets such as the Price filter or categories. However, you can easily add the desired widgets by following the steps mentioned above.