Show suggestions for fractions in IntelliSense (#16353)

Fixes
tailwindlabs/tailwindcss-intellisense#1178
(partially)

An IntelliSense PR (+ Play update) is required to make this work better
with v4:
tailwindlabs/tailwindcss-intellisense#1182

<img width="671" alt="Screenshot 2025-02-07 at 15 19 59"
src="https://github.com/user-attachments/assets/7642b80c-f431-4a1e-964d-2a98ffe7a67a"
/>

Author: thecrypticace

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Export `tailwindcss/lib/util/flattenColorPalette.js` for backward compatibility ([#16411](https://github.com/tailwindlabs/tailwindcss/pull/16411))
 - Fix sorting numeric utilities when they have different magnitudes ([#16414](https://github.com/tailwindlabs/tailwindcss/pull/16414))
+- Show suggestions for fractions in IntelliSense ([#16353](https://github.com/tailwindlabs/tailwindcss/pull/16353))
 
 ## [4.0.6] - 2025-02-10