chore: release v0.5.9

Author: subframe7536

package.json

@@ -2,7 +2,7 @@
   "publisher": "subframe7536",
   "name": "custom-ui-style",
   "displayName": "Custom UI Style",
-  "version": "0.5.8",
+  "version": "0.5.9",
   "private": true,
   "packageManager": "[email protected]",
   "description": "Custom ui css style in both editor and webview, unify global font family, setup background image",