Add a "source" column in the label_validation table

[misaugstad]

Brief description of problem/feature

Maybe think of a better name than "interface", but ultimately we should have an easy indication of which interface was used for validating. I think that we can at least mostly figure this out from other information, but we should just have a column in the label_validation table for it. Values would be "ValidateDesktop", "ValidateMobile" (and we can then remove the is_mobile column), "GalleryCard", "GalleryExpanded", "LabelMap", "AdminLabelMap", "AdminLabelSearch", "AdminContributions", etc.

[jonfroehlich]

Nice idea. How about ValidationSource?

[misaugstad]

yeah that's better 😁

[misaugstad]

Maybe just source! It's already called the label_validation table, so validation_source is a little bit redundant.

[jonfroehlich]

Sure!