v1.16.2

Breaking Change

This PR converts the filenames for i18n to lowercase to match ISO 639-1. This follows our standard for lang and reduces confusion about casing. It only affects users who import language files individually.

Before

import n2words from 'n2words/i18n/EN.js'

After

import n2words from 'n2words/i18n/en.js'

What's Changed

• General improvements by @TylerVigario in #108
• Bump version to 1.16.2 by @TylerVigario in #110

Full Changelog: v1.16.1...v1.16.2