Image preview time-based toggle

Add a setting to toggle image display based on time. For example, I don't want to see images from 09:00 to 17:00, because of work school etc, but i do not want to manually toggle them on and off each day. It could be similar to a do not disturb, but just for images and media. Sometimes people post things that are not appropriate for the server i am in, and especially not appropriate for a corporate nor educational environment. This setting can be placed under the "Text and Images" tab in settings.