fix: rename demo plugin to 工具栏扩展演示

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: massif-01

Plugins/Plugin_market/index.json

@@ -135,7 +135,7 @@
       "version": "1.0.0",
       "name": {
         "en": "Toolbar Extension Demo",
-        "zh": "扩展插件开发 DEMO"
+        "zh": "工具栏扩展演示"
       },
       "description": {
         "en": "Demonstrates toolbar button extension API: button registration, active/loading states, and fullscreen modal.",

Plugins/Plugin_market/toolbar-extension-demo/manifest.json

@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "name": {
     "en": "Toolbar Extension Demo",
-    "zh": "扩展插件开发 DEMO"
+    "zh": "工具栏扩展演示"
   },
   "description": {
     "en": "Demonstrates the new toolbar button extension API, including button registration, active/loading states, and fullscreen modal features.",