Copy Gmail Message-Id

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Copy Gmail Message-Id",
    "version": "0.3.0",
    "description": "Copies the Message-Id of a message in the new Gmail UI",
    "icons": {
        "16": "public\/icons\/icon16.ico",
        "32": "public\/icons\/icon32.ico",
        "48": "public\/icons\/icon48.ico",
        "128": "public\/icons\/icon128.ico"
    },
    "browser_action": {
        "default_icon": "public\/icons\/icon16.ico"
    },
    "content_scripts": [
        {
            "js": [
                "assets\/content-script-loader.content.ts.54357fa5.88d9e17b.js"
            ],
            "matches": [
                "https:\/\/mail.google.com\/mail\/u\/*"
            ]
        }
    ],
    "web_accessible_resources": [
        {
            "matches": [
                "https:\/\/mail.google.com\/*"
            ],
            "resources": [
                "assets\/content.ts.54357fa5.js"
            ],
            "use_dynamic_url": true
        }
    ]
}