Added clsx Tailwind autocomplete support to VSCode

refs https://github.com/lukeed/clsx#tailwind-support

- this should enable Tailwind autocomplete in `clsx` for those who use
  the Tailwind Intellisense plugin

.vscode/settings.json

@@ -19,5 +19,8 @@
     "**/ghost.map": true,
     "**/node_modules": true,
     "ghost/core/core/built/**": true
-  }
-}
+  },
+  "tailwindCSS.experimental.classRegex": [
+    ["clsx\\(([^)]*)\\)", "(?:'|\"|`)([^']*)(?:'|\"|`)"]
+  ]
+}