Update changelog

Author: thecrypticace

packages/vscode-tailwindcss/CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - LSP: Declare capability for handling workspace folder change notifications ([#1223](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1223))
 - Don't throw when resolving paths containing a `#` character ([#1225](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1225))
+- Show `@theme` in symbol list in CSS language mode ([#1227](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1227))
 
 ## 0.14.6