feat: Add Orange font-face for Helvetica Neue

[vprothais]

Types of change

• Non-breaking change
• Breaking change (fix or feature that would change existing functionality and usage)

Related issues

Closes #3224

Description

Add Helvetica Neueu font-face with font loaded from CDN

Checklists

• I have read the contributing guidelines
• My change follows the developer guide
• My change pass all tests
• My change is compatible with a responsive display
• [~] I have added tests (Javascript unit test or visual) to cover my changes
• My change introduces changes to the documentation that I have updated accordingly
  • Title and DOM structure is correct
  • Links have been updated (title changes impact links)
  • CSS for the documentation
• [~] I have checked all states and combinations of the component with my change
• I have checked all the impacts for the other components and core behavior (grid, reboot, utilities)

Checklist (for Core Team only)

• The changes need to be in the migration guide
• The changes are well displayed in Storybook (be careful if example order has changed for DSM)
• The changes are compatible with RTL
• Manually test browser compatibility with BrowserStack (Chrome 120, Firefox 121, Edge 120, Safari 15.6, iOS Safari, Chrome & Firefox on Android)

Progression (for Core Team only)

• Code review
• Design review
• A11y review
• Commit on ouds/main following conventional commit

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[louismaximepiton]

Should we update $ouds-font-weights in this PR or not ? It might be tricky since we don't have the same font-weights available between Sosh and Orange.

I think it's maybe missing some information inside typography.mdx
Should we add the used font somewhere in the doc ?

Should we update migration to say that it's new ?

Should we ask a design review on every existing component (even the basic classes) since every single component has changed (between Arial and this one at least)

[vprothais]

I decided to keep the medium value here, since the token exists in Sosh, en just remove the usage in the Sosh documentation. The medium value for Sosh should be ready on design side in the beginning of 2026

[louismaximepiton]

A small non-mandatory thing and we're good to go !