fix: slugify function

[phvm]

What is the purpose of this pull request?

Fixing the table of contents slugs

What problem is this solving?

Table of content slugs having missing characters

How should this be manually tested?

Screenshots or example usage

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires change to documentation, which has been updated accordingly.

[netlify]

✅ Deploy Preview for leafy-mooncake-7c2e5e ready!

Name	Link
🔨 Latest commit	5fa10ef
🔍 Latest deploy log	https://app.netlify.com/sites/leafy-mooncake-7c2e5e/deploys/671f8011c820f500087f554d
😎 Deploy Preview	https://deploy-preview-131--leafy-mooncake-7c2e5e.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[PedroAntunesCosta]

Great! But it just works on the first click.

How I tested:

1. Synced with your branch
2. Changed the components dependency declaration to get from the branch fix/slugify
3. Ran yarn.
4. Accessed the articles mentioned in the issue.
5. Clicked any element of the table of contents. If it had a special char, I was able to see that the slug was correct.
6. If I click any table of contents element with a special char, it would be incorrect. Example:

/pt/docs/tracks/instore-setup-basico#configurar-condies-de-pagamento