feat: (wip) ten years old laptop→ten year old laptop

[hippietrail]

Issues

#433

Description

Aims to address using plurals in modifiers:

• a two-years-old kid → two-year-old
• a ten feet pole → ten foot pole

This is a work in progress. It seems to be more subtle than anticipated.

Demo

How Has This Been Tested?

AI Disclosure

• I am a human and didn't use any AI.
• I used LLM features of my editor, but not an agent.
• I used an AI agent interactively.
• I am an agent or I got an agent to do the work autonomously.

If Your PR Implements or Enhances a Linter

• I made up the sentences in the unit tests.
• The sentences in the unit tests were generated by an AI.
• I'm using examples from the bug report / feature request.
• I collected real-world sentences for the unit tests.

Checklist

• I have performed a self-review of my own code
• I have added tests to cover my changes
• I have considered splitting this into smaller pull requests.