[2.x] Add new exception for visibility in the flat table

[Jade-GG]

visibility does not come with its very own visibility_value column. As it seems there's already a list of exceptions for this scenario I've just added the visibility type to that.

[royduin]

But visibility is selected by default, see:

core/src/Models/Scopes/Product/WithProductAttributesScope.php

Line 27 in a801c68

$model->qualifyColumn('visibility'),

[Jade-GG]

But visibility is selected by default, see:

core/src/Models/Scopes/Product/WithProductAttributesScope.php

Line 27 in a801c68

$model->qualifyColumn('visibility'),

This is true, the issue comes from trying to add it as a cart attribute (after adding it to the gql schema), which then also adds it as a select automatically.

Given the fact that it does already get selected automatically here, maybe we should also add it in the default cart query? (which also requires adding it into the schema in compadre)

[royduin]

And where do you need the visibility for?

[Jade-GG]

And where do you need the visibility for?

We use this in one project with a specific use case to determine how to link back to said product (whether or not it's a sub-product is based on whether or not it's visible). For now I can overwrite cart.graphql and manually put it in but surely that shouldn't be necessary.