Examine source code of HN Comment Saver

{
  "manifest_version": 3,
  "name": "HN Comment Saver",
  "version": "1.0.1",
  "description": "Save Hacker News comments, tag them, and find them later with fuzzy search. Import/export included.",
  "browser_specific_settings": {
    "gecko": {
      "id": "hn-comment-saver@local",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "background": {
    "scripts": [
      "db.js",
      "background.js"
    ]
  },
  "action": {
    "default_title": "Saved HN comments",
    "default_icon": {
      "48": "icons/toolbar-48.png",
      "96": "icons/toolbar-96.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://news.ycombinator.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "downloads",
    "alarms",
    "storage"
  ],
  "host_permissions": [
    "*://news.ycombinator.com/*"
  ]
}