New Countdown Timer

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "New Countdown Timer",
    "version": "1.2.4",
    "description": "Powerful browser countdown timer",
    "action": {
        "default_popup": "src\/popup\/popup.html",
        "default_icon": {
            "16": "icons\/icon16.png",
            "48": "icons\/icon48.png",
            "128": "icons\/icon128.png"
        }
    },
    "background": {
        "service_worker": "service-worker-loader.js",
        "type": "module"
    },
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "permissions": [
        "storage",
        "notifications",
        "activeTab",
        "offscreen"
    ],
    "content_scripts": [
        {
            "js": [
                "assets\/content-script-loader.playSound-CRgeFJJW-JuI_aPay.js"
            ],
            "matches": [
                "http:\/\/*\/*",
                "https:\/\/*\/*"
            ]
        }
    ],
    "web_accessible_resources": [
        {
            "matches": [
                "http:\/\/*\/*",
                "https:\/\/*\/*"
            ],
            "resources": [
                "sounds\/*",
                "icons\/*"
            ],
            "use_dynamic_url": false
        },
        {
            "matches": [
                "http:\/\/*\/*",
                "https:\/\/*\/*"
            ],
            "resources": [
                "assets\/audio-Bl34SnzS.js",
                "assets\/playSound-CRgeFJJW.js"
            ],
            "use_dynamic_url": true
        }
    ]
}