Reformat manifest.json for consistency

Updated the formatting of arrays in manifest.json for improved readability and consistency. No functional changes were made.

manifest.json

@@ -14,9 +14,7 @@
   },
   "content_scripts": [
     {
-      "js": [
-        "content.js"
-      ],
+      "js": ["content.js"],
       "matches": [
         "https://github.com/*",
         "https://gitlab.com/*",
@@ -49,17 +47,8 @@
   "version": "1.0.0",
   "web_accessible_resources": [
     {
-      "matches": [
-        "<all_urls>"
-      ],
-      "resources": [
-        "icons/*"
-      ]
+      "matches": ["<all_urls>"],
+      "resources": ["icons/*"]
     }
   ]
-}      "resources": [
-        "icons/*"
-      ]
-    }
-  ]
-}
+}