doc: Add Brands section to documentation

[hannahiss]

Related issues

Closes #3531

Description

Checklists

• I have read the contributing guidelines
• My change follows the developer guide
• My change follows the page structure defined in [OUDS] Create a component page template for the doc #3045
• Title and DOM structure is correct
• Links have been updated (title change impacts links for example)

Progression (for Core Team only)

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

Live previews

• https://deploy-preview-3552--boosted.netlify.app/orange/docs/foundation/themes
• https://deploy-preview-3552--boosted.netlify.app/orange-compact/docs/foundation/themes
• https://deploy-preview-3552--boosted.netlify.app/sosh/docs/foundation/themes

[netlify]

✅ Deploy Preview for boosted ready!

Name	Link
🔨 Latest commit	f2bfb10
🔍 Latest deploy log	https://app.netlify.com/projects/boosted/deploys/6a47ce5447ba75000811e016
😎 Deploy Preview	https://deploy-preview-3552--boosted.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
🤖 Make changes	Run an agent on this branch

---

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

[hannahiss]

Made a first version that is ok I think to be deployed, based on Cyriaque's texts modifications and Jerome's designs (ask LM for Figma URL). Could maybe be improved :-)

[hannahiss]

@louismaximepiton @MaxLardenois The sosh logo should be changed now that we updated the tokens to the new Sosh colors... And I still wonder if we should have the copy button for the logos, since the copied code is not minimized...?