fix: remove unused import and simplify key generation in SideBarFoldersButtonsComponent (#5227)

* ♻️ (index.tsx): Remove unused getRandomKeyByssmm function to clean up code and improve maintainability
📝 (index.tsx): Update key prop in SidebarMenuItem component to use index instead of getRandomKeyByssmm function for better performance and readability

* 📝 (select-options.tsx): Refactor SelectOptions component to improve readability and maintainability by restructuring the JSX elements and adding proper classNames
📝 (index.tsx): Introduce state for hoveredFolderId to track the currently hovered folder in the SideBarFoldersButtonsComponent for better user interaction and visual feedback. Update SidebarMenuItem to include onMouseEnter and onMouseLeave events to set and clear the hoveredFolderId state respectively. Update SidebarMenuButton className to conditionally apply background color based on the hoveredFolderId state.