[valid-title] Feature: User-specified error message for jest/valid-title::mustMatch

[ejfine]

The error message for jest/valid-title using mustMatch is not especially helpful to new users to a codebase that has that rule implemented. It just displays the regular expression.

Would you be open to a Pull Request to allow the eslint config for the rule to accept an [optional] plain text description that would be included in the error message to help make it clearer to people seeing the ESLint error what they did wrong and how to fix it?

[G-Rath]

I'm not against this - it would increase the complexity a bit, but no immediate blockers spring to mind so happy to explore this.

[github-actions]

🎉 This issue has been resolved in version 24.5.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[github-actions]

🎉 This issue has been resolved in version 25.0.0-next.5 🎉

The release is available on:

• npm package (@next dist-tag)
• GitHub release

Your semantic-release bot 📦🚀