feat: tho→though

[hippietrail]

Issues

N/A

Description

"Tho" is an abbreviation I use a lot so I've added a Weir rule to expand it to "though" based on the one that expands "thru" to "through".

How Has This Been Tested?

• cargo run --bin harper-cli test harper-core/src/linting/weir_rules/ExpandThough.weir
• cargo test

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.