Ability to group Sections and Components into folders / custom sorting

Description: Currently, Sections and Components in the sidebar are organized strictly by their creation/addition time. There is no way to manually sort, reorder, or group them.

This causes a major usability issue as the project grows. For example, one "Hero" section might be at the very top of the list, while another "Hero" variant added later ends up at the very bottom. This layout is highly counterintuitive and makes finding assets problematic and time-consuming.

Proposed Solution:

• Folder Structure: Allow users to create custom folders in the sidebar to group related Sections and Components together (e.g., "Heros", "Footers", "Buttons").

• Drag-and-Drop Sorting: Enable manual reordering (drag-and-drop) or at least alphabetical sorting to keep the workspace organized.