Examine source code of Calenote - Nepali Calendar

{
  "manifest_version": 3,
  "name": "Calenote - Nepali Calendar",
  "short_name": "Calenote",
  "version": "1.6.6",
  "description": "(BS) + (AD) calendar with notes, to-dos, reminders, tithi, holidays and weather. Auto-picks the right calendar for you.",
  "permissions": [
    "alarms",
    "notifications",
    "storage",
    "geolocation"
  ],
  "host_permissions": [
    "https://calenote.app/*",
    "https://api.open-meteo.com/*",
    "https://nominatim.openstreetmap.org/*",
    "https://ipapi.co/*",
    "https://fonts.googleapis.com/*",
    "https://fonts.gstatic.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://calenote.app/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "core.js",
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "notif-popup.html",
        "notif-popup.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "calenote@calenote.app",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "locationInfo",
          "personallyIdentifyingInfo"
        ]
      }
    }
  }
}