Make BorrowInventory Page More Like Figma

Story Points: 2

# How?

As we quickly made the BorrowInventory page for the demo a few weeks back, it doesn't perfectly line up with Figma.

To remedy the problem, the BorrowInventory page needs to look a lot more like the main Inventory page. The itemTypes need to be selectable with checkboxes, as do the items themselves on a SubBorrowInventory.
Additionally, the Figma shows a numerical selector for the amount of items.
On the SubBorrowInventory, add a quantity bar to the top that is in charge of the amount of checkboxes selected for that itemType.
Lastly, we need a FAB for after the borrowing is all done, which borrows the selected items all at once (there is a backend API for that) and navigates the user back to the Dashboard.

Also, maybe store those ids in a lastCheckedOutSlice?