Enable 'pre' property in menu config file

[jaestevan]

Description

Enables the 'pre' property while defining menus in Hugo: https://gohugo.io/content-management/menus/

Like:

[[main]]
  name = "Home"
  weight = 100
  identifier = "home"
  pre = "<i class='fa fa-house' style='padding-right:0.2em'></i>"
  url = "/"

This is a standard property that can be enabled with this minimum change

Issue Number:

None

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Additional Information (Optional)

Enabling this property enables the theme to use icons in the menu if desired

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Checklist

Yes, I included all necessary artefacts, including:

• [ ] Tests
• [ ] Documentation
• [x] Implementation (Code and Ressources)
• [x] Example

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Testing Checklist

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

• [x] Desktop Light Mode (Default)
• [x] Desktop Dark Mode
• [ ] Desktop Light RTL Mode
• [ ] Desktop Dark RTL Mode
• [x] Mobile Light Mode
• [x] Mobile Dark Mode
• [ ] Mobile Light RTL Mode
• [ ] Mobile Dark RTL Mode

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Notify the following users

N/A

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[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information