Description

This PR will add tags support in Query block and is part of #24934 and FSE milestone 5.

There still needs to be a decision about the final design of Query block, but that also depends on how many things we will include eventually and where ( toolbar, inspector controls etc..).

For now I've added the tags controls in the toolbar like the previously existed categories. To me though this could be a better fit for inspector controls (maybe a follow up PR?). IMO since it's easy to move the functionality between the toolbar and the inspector controls, this enhances the functionality of Query block and could be merged even without the finalized design.

Also note that for now if you select both tags and categories it defaults to AND query for those. Maybe we should consider tax relation in the future to allow the OR option.

Finally this PR fixes a previous bug which didn't allow the selection of multiple categories in Query block. The multiple terms are with OR relationship. That means if we have two categories [a, b] and one tag [tagLabel], it would fetch a+tagLabel OR b+tagLabel.
Fixes: #25047

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR.