static async deprecateURL(url) {
        let currentPrimaryBaseURL = await setting("primaryBaseURL");

        if (!currentPrimaryBaseURL) {
            console.log("Move the url to be the primary base URL");
            await setSettings("general", {
                primaryBaseURL: url,
            });
        } else {
            console.log("Already there, no need to move the primary base URL");
        }
    }
Deprecated property notification.slackbutton
Set it as primary base url if this is not yet set.
@deprecated
@param {string} url The primary base URL to use
@returns {Promise<void>}