bisturi js rename: 3 edits in 1 file(s)

bisturi js rename: 3 edits in 1 file(s): a task in bisturi-harbor (Harbor dataset). In cart.js , rename the function exportBooks to selectBooks and update all its calls in the file, rename the function countBooks to checkBooks and update all its calls in the file and change the exported constant…

The task

In `cart.js`, rename the function `exportBooks` to `selectBooks` and update all its calls in the file, rename the function `countBooks` to `checkBooks` and update all its calls in the file and change the exported constant `BATCH_SIZE` from `100` to `200`. Everything else must stay exactly as it is.

Part of efederici/bisturi-harbor.