Add subscription information on storefront tiles

[SamDamDing]

It'd be great if you could have information about a title's subscription availability at a quick glance on the storefront's tile, like it would if it was in your library or on your wishlist. For reference, these tiles:

[alike03]

The default Storefront has it but not the sale layout.
I did try it once for a sale, but the problem was, that Steam adjusted with every sale the layout.
Which then requires an update.

I could do the updates with every sale, but this has also some hurdles.
Main one being the updates going through a review processes though Mozilla and Chrome.
These processes are quite unpredictable, it did take for this addon from 1 day up to 2 weeks.
With some bad luck, an update could arrive after the sale is already over.
That's why I didn't bother putting much effort in it.

I'm monitoring the sale pages. As soon as steam stops with those changes, I will do it.
But currently they are adjusting it, so don't expect a change for a while.