Forward email for Gmail

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "__MSG_app_name__",
    "version": "3.0.1",
    "description": "__MSG_app_description__",
    "default_locale": "en",
    "background": {
        "service_worker": "\/js\/background.js"
    },
    "content_scripts": [
        {
            "js": [
                "\/js\/content.js",
                "\/js\/sweetalert.min.js"
            ],
            "matches": [
                "https:\/\/mail.google.com\/*"
            ],
            "run_at": "document_end"
        }
    ],
    "homepage_url": "https:\/\/easy-forward-email.freeonlineapps.net\/",
    "icons": {
        "16": "img\/icon-16.png",
        "32": "img\/icon-32.png",
        "48": "img\/icon-48.png",
        "64": "img\/icon-64.png",
        "128": "img\/icon-128.png",
        "256": "img\/icon-256.png"
    },
    "action": {
        "default_icon": {
            "16": "img\/icon-16.png",
            "48": "img\/icon-48.png",
            "128": "img\/icon-128.png"
        },
        "default_popup": "ui\/popup.html",
        "default_title": "__MSG_app_name__"
    }
}