Automatically calculate number of unique combinations

[polarstoat]

Currently the number of unique combinations displayed in src/BodyText.jsx is manually calculated using this tool and then updated. This could relatively easily be calculated programmatically.

texture/src/BodyText.jsx

Line 17 in ae07847

<p>There are <strong>over 3 trillion</strong> unique combinations of audio loops in Texture; this means you probably have a combination that has never been heard by anyone before and probably will never be heard again — unless of course you share it.</p>

[polarstoat]

This might be more effort than previously thought because of JavaScript's limitations with working with really big numbers. For example, npm package factorial simply returns Infinity for anything over 170.

Inspecting the source of the mathsisfun.com calculator reveals they had to use a custom number class to work with such large numbers. I've done some light research into big number libraries for JS, but this seems to be a lot of bloat/work for a tiny bit of automation.