WAcall: Make SIM calls from WhatsApp Web

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "version": "1.2",
    "permissions": [
        "storage"
    ],
    "action": {
        "default_popup": "wa\/popup.html"
    },
    "background": {
        "service_worker": "background.js"
    },
    "icons": {
        "48": "img\/calling.png",
        "64": "img\/calling.png"
    },
    "web_accessible_resources": [
        {
            "resources": [
                "fla.js"
            ],
            "matches": [
                "*:\/\/web.whatsapp.com\/*"
            ]
        }
    ],
    "name": "WAcall: Make SIM calls from WhatsApp Web",
    "description": "Get a call button next to every number on WhatsApp Web. With one click, your mobile dials the number instantly through your SIM.",
    "content_scripts": [
        {
            "matches": [
                "https:\/\/web.whatsapp.com\/"
            ],
            "js": [
                "content.js"
            ]
        }
    ]
}