Customize the success message when lint succeeds

[dexterastin]

Hi, I want to customize the success message when lint succeeds (like ✅ Done! All good!). What do you think? If you don't mind, I'll update the code and create PR.

[MorrisonCole]

Hey @dexterastin, apologies for my sloooow response - started a new job and got a bit behind! 😄

It's a great idea and I'd love it if you still had time to submit that PR, if not I'll get around to it eventually 🙏