feat: Add footer support to Drawer component and integrate into PackEditDrawer and SampleEditDrawer

Commit notes

This commit enhances the Drawer component by introducing a footer prop, allowing for customizable footer content. The PackEditDrawer and SampleEditDrawer components have been updated to utilize this new footer feature, providing users with action buttons for delete and save functionalities directly within the drawer's footer.

New features: - Footer support in Drawer component - Integration of footer in PackEditDrawer and SampleEditDrawer with action buttons - Improved user experience for managing pack and sample edits