Don’t suggest named opacity modifiers in intellisense (#14339)

We removed named opacity modifier support in #14278 but we (read: me
lol) totally forgot about the suggestions in intellisense. So we need to
make sure that we don't suggest those either.

Author: thecrypticace

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix support for Nuxt projects in the Vite plugin (requires Nuxt 3.13.1+) ([#14319](https://github.com/tailwindlabs/tailwindcss/pull/14319))
 - Evaluate theme functions in plugins and JS config files ([#14326](https://github.com/tailwindlabs/tailwindcss/pull/14326))
 - Ensure theme values overridden with `reference` values don't generate stale CSS variables ([#14327](https://github.com/tailwindlabs/tailwindcss/pull/14327))
+- Don’t suggest named opacity modifiers in intellisense ([#14339](https://github.com/tailwindlabs/tailwindcss/pull/14339))
 
 ## [4.0.0-alpha.21] - 2024-09-02