Remove "preview" tag

Author: bradlc

packages/vscode-tailwindcss/package.json

@@ -2,7 +2,6 @@
   "name": "vscode-tailwindcss",
   "displayName": "Tailwind CSS IntelliSense",
   "description": "Intelligent Tailwind CSS tooling for VS Code",
-  "preview": true,
   "author": "Brad Cornes <hello@bradley.dev>",
   "license": "MIT",
   "version": "0.9.2",