display number of images in set

[HWFord]

Have this as an optional setting. Display it in the same place as in the modus theme. Display in all breadcrumbs, no matter if we are in a album, displaying images linked to tags, in a search or other.

Here is what it looks like in modus

[plegall]

with or without a setting to disable it? We can also rely on a CSS rule to hide it... or to display it if it is hidden by default.