Cm to inches

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_extName__",
    "description": "__MSG_extDescription__",
    "author": "Million Extension",
    "manifest_version": 3,
    "version": "0.0.4",
    "default_locale": "en_US",
    "action": {
        "default_popup": "popup.html"
    },
    "background": {
        "service_worker": "background.js"
    },
    "permissions": [
        "storage",
        "activeTab"
    ],
    "content_scripts": [
        {
            "matches": [
                "https:\/\/*\/*"
            ],
            "js": [
                "content.js"
            ]
        }
    ],
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "64": "icons\/icon64.png",
        "128": "icons\/icon128.png"
    },
    "commands": {
        "open-extension": {
            "suggested_key": {
                "default": "Alt+W"
            },
            "description": "Open extension"
        }
    }
}