Apply to all cards

[Gulix]

Some properties on template could be related to styling, without being implemented as an independent style. For example, a Black & White version of a card matched to a checkbox, or a background visible / invisible. Sometimes, we need to update all cards of the list to the same value for a property. It could also be a "Credits" properties, or a version one.

We need to be able to modify all the cards data from the list (maybe even chosing the cards to modify). Also, maybe highlight some fields that could be frequently updated this way ( "applyallfavorite"="true" )