add tailwind css file association (#2198)

This PR updates the vscode settings to associate .css files with
tailwindcss. This change is recommended by
[tailwind](https://github.com/tailwindlabs/tailwindcss-intellisense?tab=readme-ov-file#recommended-vs-code-settings).

Author: jonathanawesome

.vscode/settings.json

@@ -10,6 +10,9 @@
     "editor.defaultFormatter": "esbenp.prettier-vscode"
   },
   "tailwindCSS.classFunctions": ["clsx"],
+  "files.associations": {
+    "*.css": "tailwindcss"
+  },
   "editor.quickSuggestions": {
     "strings": "on"
   },