The left sidebar in Builder updates automatically based on your selection or activity. It has three distinct states:
1. Empty State
When no element is selected on the canvas and the Add Element panel is closed, the sidebar displays a placeholder message.
2. Add Element Panel
When you click the Add Element button from the top bar, the left sidebar transforms into the Add Element panel. This panel lets you browse and insert elements and compositions.
3. Element Editing Panel
When an element is selected on the canvas, the left sidebar switches to the Element editing panel. There are three tabs in this panel: Editor, Styler, and Advanced settings.
