Different spellings of common names

Currently, alias generator does not predict common spellings. For example:
`Josef` / `Joseph`
`Philipp` / `Phillip` / `Philip`

Especially in multilingual contexts, it is common for one person to use multiple such variants.

The issue names no files, tests, or entry points, so first locate the alias-generation entry point and any existing name-variant tests in this Node module. Define the supported common spellings and multilingual scope with the maintainer, then verify that Josef/Joseph and Philipp/Phillip/Philip produce the intended aliases without unrelated changes.

Written by the indexing model from the issue text.