Print button extension

Button shortcut to the printing window, same as pressing Ctrl + p.

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manifest.json

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "0.8.0",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "contentScript.js"
      ],
      "all_frames": false
    }
  ],
  "action": {
    "default_icon": {
      "16": "assets/icon-16.png",
      "32": "assets/icon-32.png",
      "48": "assets/icon-48.png",
      "128": "assets/icon-128.png"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "tabs",
    "management"
  ],
  "background": {
    "service_worker": "background.js"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}