Height of the notification constraints

[sashazxtt]

It appears that the height of the notification must be an exact multiple of the animation steps. If it is not, then in moveNotificationAnimation() notificationWindow.setPosition will throw an exception

    at TypeError (native)
    at Timeout._repeat (C:\Users\t_kevinki\pulse-electron\app\node_modules\electron-notify\index.js:424:24)

That is because step will not be an integer if the height is not a multiple of steps. Maybe casting to int will fix it?