Replace `vue_shared/directives/popover` directive with GlPopover in ee/app/assets/javascripts/epic/components/sidebar_items/sidebar_date_picker.vue
The vue_shared/directives/popover.js
directive is a helper that allows instantiating a jQuery/Bootstrap popover using from Vue. We should remove this directive and replace its usage with GitLab UI popover component/directive.
Edited by Enrique Alcántara