fix: yat grapheme validation

[gomesalexandre]

Description

Fixes y.at validation, currently failing for some emojis with the current logic.
The tl;dr on that is that /^\p{Extended_Pictographic}{1,5}$/u doesn't test/match what we would naively think it does.

• '🦊❤️😎❤️'.match(/\p{Extended_Pictographic}/gu) // ["🦊","❤","😎","❤"] (notice the removed caret and dollarsign as well as the 1,5 multiplicator)
• '🦊❤️😎❤️'.match(/\p{Extended_Pictographic}+/gu) // [ "🦊❤", "😎❤" ] (notice the + multiplicator, and how this now creates two groups of two "emojis")
• '🦊❤️😎❤️'.match(/^\p{Extended_Pictographic}{1,5}^/gu) // null

Fixed by using the grapheme-splitter as recommended by Gabriel from y.at, which ensures we split characters by graphemes e.g "user-visible characters", as opposed to actual characters, which emojis might be made of many.

Notice

• Have you followed the guidelines in our Contributing guide?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Pull Request Type

• 🐛 Bug fix (Non-breaking Change: Fixes an issue)
• 🛠️ Chore (Non-breaking Change: Doc updates, pkg upgrades, typos, etc..)
• 💅 New Feature (Breaking/Non-breaking Change)

Issue (if applicable)

N/A

Risk

None, worst case scenario this is still broken

Testing

• Ensure valid y.ats now pass validation
• Invalid y.ats (not registered, or with some non-emojis characters somewhere in the string) are still failing validation

Engineering

☝🏽

Operations

☝🏽

Screenshots (if applicable)

[gomesalexandre]

Current dependencies on/for this PR:

• develop
  • PR fix: yat grapheme validation #3909 👈

This comment was auto-generated by Graphite.

[0xdef1cafe]

Very naice