Examine source code of TestRail Sidebar Hider

{
  "manifest_version": 2,
  "name": "TestRail Sidebar Hider",
  "version": "0.0.2",
  "browser_action": {
    "default_title": "TestRail Sidebar Hider",
    "default_popup": "popup.html"
  },
  "description": "TestRail Sidebar Hider. Now better than ever.",
  "content_scripts": [
    {
      "js": [
        "jquery-3.6.0.min.js",
        "headerButton.js",
        "bottomButton.js"
      ],
      "css": [
        "style.css"
      ],
      "matches": [
        "https://*.testrail.net/index.php?/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c22f1686-5cb1-47fb-8dc4-adf44c401026}"
    }
  }
}