fix(preset-web-fonts): support width axis and single axis config for google provider

[Jungzl]

fix: #4876

[netlify]

✅ Deploy Preview for unocss ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	378c908
🔍 Latest deploy log	https://app.netlify.com/projects/unocss/deploys/689c33a57cebf300086ce24b
😎 Deploy Preview	https://deploy-preview-4878--unocss.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 project configuration.

[pkg-pr-new]

Open in StackBlitz

commit: 378c908

[Copilot]

Pull Request Overview

This PR adds support for the font width axis and single axis configuration for the Google Fonts provider. It refactors the Google Fonts URL generation to handle multiple font axes (italic, width, weight) in the correct alphabetical order as required by the Google Fonts API.

• Adds width axis support to the WebFontMeta interface
• Refactors Google provider to use a more flexible axis-based approach
• Consolidates CoolLabs provider to use the same Google-compatible implementation

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
packages-presets/preset-web-fonts/src/types.ts	Adds width property to WebFontMeta interface for font width axis support
packages-presets/preset-web-fonts/src/providers/google.ts	Refactors URL generation to support multiple font axes with proper alphabetical ordering
packages-presets/preset-web-fonts/src/providers/coollabs.ts	Replaces duplicate implementation with reuse of Google-compatible provider
test/preset-web-fonts.test.ts	Updates test to verify width axis support in generated font URLs

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}