feat: add descriptions to portfolio categories

[lorenzobalzani]

Description

I added a description for the portfolio categories.

Issue Number:

• Here Goes the Issue Number with a '#'

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Additional Information (Optional)

• Here goes any Additional Information you would like to add.

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Checklist

Yes, I included all necessary artefacts, including:

• Tests
• Documentation
• Implementation (Code and Resources)
• Example

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Testing Checklist

Yes, I ensured that all of the following scenarios were tested:

• Desktop Light Mode (Default)
• Desktop Dark Mode
• Desktop Light RTL Mode
• Desktop Dark RTL Mode
• Mobile Light Mode
• Mobile Dark Mode
• Mobile Light RTL Mode
• Mobile Dark RTL Mode

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[netlify]

👷 Deploy Preview for anatole-demo processing.

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🔨 Latest commit	a8acf77
🔍 Latest deploy log	https://app.netlify.com/sites/anatole-demo/deploys/65e0d8482f877300080d5e90

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[lxndrblz]

@lorenzobalzani LGTM. Thanks for your PR.