Provide a way to filter toolbar controls in Query block variations

[jeremyfelt]

What problem does this address?

When registering a variation for the Query block, it is possible to define the perPage, offset, and pages attributes so that they are prefilled with the variant is added. In some cases, this is a specific variation in which these attributes should not change. Currently, it is possible to immediately change these attributes through the "Display settings" dropdown in the toolbar.

What is your proposed solution?

It would be great if the individual attributes—perPage, offset, and pages—could be removed through the allowedControls property. It could also be useful to allow for the entire removal of the "Display settings" dropdown itself.

[carstingaxion]

I wish to do the same with my fork of @ryanwelcher|s Advanced query block plugin, where some of the (native & extended) controls do not fit my use-case of a contextual query block.

Without looking into the code, but shouldn’t it be possible to have all the controls placed within a slot and then unregister specific fills, when not needed?

[Mamaduka]

I think this should be doable after #58207.