impagination is not production ready

https://www.npmjs.com/package/impagination

is not production ready because

• it hasn't been updated for 7 months
• it depends on binary-search-tree that hasn't been maintained for 7 years: https://www.npmjs.com/package/binary-search-tree
• it depends on babel-runtime that hasn't been maintained for 4 years: https://www.npmjs.com/package/babel-runtime

Unmaintained dependencies put FOLIO at risk because we don't get security updates.

Task:

Either replace impagination, or update it (pull requests against impagination or against a fork, take over maintenance).