## Description Raised in Slack: https://gitlab.slack.com/archives/C04G34U119T/p1678374282211139 Currently the super sidebar has `tabindex="-1"` as it is given focus when the "Expand sidebar" button is pressed. This adds the user-agent default focus-ring styles to the sidebar `<aside>` element. It appears the sidebar is also given focus when the browser window is resized. ## Outcome - Update sidebar focus-ring styles to be consistent with other interactive elements (`@include gl-focus`) - Investigate how/when sidebar is given focus and limit visual focus indication to the result of user action i.e. pressing "Expand sidebar" button only.