This task will modify the documentation sidebar so that it remains static on the page despite scrolling the content. This sidebar will have a fixed height and width and will be present on the left-hand side of the content. On the steps reference page, its height will be reduced to accommodate the plugin list sidebar.
Definition of Done:
- Upgrade the CSS of the sidebar class present in the "documentation" layout.
- Test if the layout change works for mobile devices as well.