Remove unused premission to comply with chrome web store policies

Author: Bims-sh

manifest.json

@@ -1,12 +1,11 @@
 {
   "manifest_version": 3,
-  "version": "1.1",
+  "version": "1.1.1",
   "name": "ghcss-extension",
   "description": "A simple extension that allows users to view custom css on GitHub profiles.",
   "author": "Bims-sh",
   "permissions": [
-    "tabs",
-    "activeTab"
+    "tabs"
   ],
   "icons": {
     "48": "images/extension_48.png",
@@ -22,4 +21,4 @@
       "js": ["src/content/ghcss.ts"]
     }
   ]
-}
+}