refactor(index): destruct module imports

[Fdawgs]

Import functions all in one go rather than successive require() calls. Probably the tiniest perf improvement but cba to bench for a quectosecond improvement.

Saves a few bytes regardless.

Checklist

• [x] run npm run test and npm run benchmark
• [x] commit message and code follows the Developer's Certification of Origin and the Code of conduct