bugfix, add background js, add logo

packages/shell-chrome/assets/js/background.js

@@ -0,0 +1 @@
+console.log("[BitDance extension] 学生助手插件启已启用")

packages/shell-chrome/manifest.json

@@ -2,12 +2,32 @@
   "name": "BitDance浏览器小插件",
   "version": "0.1.0",
   "description": "BitDance Chrome Extension",
+  "manifest_version": 2,
+  "_locale": "zh_CN",
   "manifest_version": 3,
+  "content_scripts": [
+    {
+      "matches": [
+        "<all_urls>"
+      ],
+      "js": [
+        "assets/js/background.js"
+      ],
+      "css": []
+    }
+  ],
   "browser_action": {
-     "default_icon": "assets/image/ico19_disable.png",
+    "default_icon": "assets/image/icon_disabled.png",
     "default_popup": "popup.html",
     "default_title": "这是一个默认title"
   },
-  "default_locale": "zh_CN",
-  "permissions": [ "background", "contextMenus", "storage", "unlimitedStorage", "webRequest", "webRequestBlocking", "tabs" ]
+  "permissions": [
+    "background",
+    "contextMenus",
+    "storage",
+    "unlimitedStorage",
+    "webRequest",
+    "webRequestBlocking",
+    "tabs"
+  ]
 }

packages/shell-chrome/popup.html

@@ -15,4 +15,3 @@
 <script src="assets/js/popup.js"></script>
 </body>
 </html>
-