Top and Bottom scroll buttons

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Top and Bottom scroll buttons",
  "short_name": "Scroll buttons",
  "description": "Adds scroll to Top and Bottom buttons on all sites",
  "version": "2.0.0",
  "icons": {
    "48": "img/icon-48.png",
    "96": "img/icon-96.png",
    "128": "img/icon-128.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "content/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "options/options-storage.js",
        "content/buttons.js"
      ],
      "css": [
        "content/buttons.css"
      ],
      "all_frames": false
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "img/arrow-up.svg",
        "img/arrow-dn.svg"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  }
}