Add cross sells products to preview cart

[nielslange]

Fixes #6556

Currently, the Cross-Sells products are only available in the shortcode-based Cart, but not in the Cart block. To make the Cross-Sells products available in the editor when viewing the Cart block, we need to add demo products to export const previewCart. This PR is taking care of this.

Accessibility

• I've tested using only a keyboard (no mouse)
• I've tested using a screen reader
• All animations respect prefers-reduced-motion
• All text has at least a 4.5 color contrast with its background

Other Checks

• This PR adds/removes a feature flag & I've updated this doc.
• This PR adds/removes an experimental interfaces and I've updated this doc
• I tagged two reviewers because this PR makes queries to the database or I think it might have some security impact.

Testing

User Facing Testing

1. Look up the changed file.
2. Verify that the file contains Cross-Sells products.
3. Verify that for each Cross-Sells product the corresponding image exists.

• Do not include in the Testing Notes

WooCommerce Visibility

• WooCommerce Core
• Feature plugin
• Experimental

Performance Impact

n/a

Changelog

n/a

[github-actions]

Size Change: +1.19 kB (0%)

Total Size: 866 kB

Filename	Size	Change
build/active-filters.js	7.57 kB	+1 B (0%)
build/all-products.js	33.5 kB	+14 B (0%)
build/all-reviews.js	7.8 kB	+2 B (0%)
build/attribute-filter.js	13.9 kB	+2 B (0%)
build/blocks-checkout.js	17.4 kB	+24 B (0%)
build/cart.js	44.8 kB	+592 B (+1%)
build/checkout.js	45.8 kB	+328 B (+1%)
build/featured-category.js	13.2 kB	+2 B (0%)
build/featured-product.js	13.5 kB	+4 B (0%)
build/handpicked-products.js	7.39 kB	+2 B (0%)
build/legacy-template.js	2.45 kB	-2 B (0%)
build/mini-cart-contents.js	23.1 kB	+222 B (+1%)
build/price-filter.js	8.99 kB	-3 B (0%)
build/product-add-to-cart.js	6.63 kB	-3 B (0%)
build/product-best-sellers.js	7.48 kB	-1 B (0%)
build/product-button.js	1.09 kB	-1 B (0%)
build/product-categories.js	2.78 kB	+3 B (0%)
build/product-category.js	8.59 kB	-1 B (0%)
build/product-new.js	7.76 kB	-1 B (0%)
build/product-on-sale.js	8.08 kB	-3 B (0%)
build/product-sale-badge.js	678 B	-1 B (0%)
build/product-sku.js	382 B	+1 B (0%)
build/product-stock-indicator.js	619 B	-2 B (0%)
build/product-summary.js	917 B	+1 B (0%)
build/product-tag-list.js	496 B	+1 B (0%)
build/product-tag.js	8.12 kB	-3 B (0%)
build/product-top-rated.js	8.01 kB	+1 B (0%)
build/products-by-attribute.js	8.69 kB	-2 B (0%)
build/reviews-by-category.js	11.3 kB	-2 B (0%)
build/single-product.js	10.1 kB	+5 B (0%)
build/stock-filter.js	7.25 kB	+3 B (0%)
build/wc-blocks-style-rtl.css	22.2 kB	+3 B (0%)
build/wc-blocks-style.css	22.1 kB	+2 B (0%)

ℹ️ View Unchanged

Filename	Size
build/active-filters-frontend.js	6.59 kB
build/all-products-frontend.js	18.1 kB
build/attribute-filter-frontend.js	17.7 kB
build/cart-blocks/cart-accepted-payment-methods-frontend.js	1.16 kB
build/cart-blocks/cart-express-payment-frontend.js	5.06 kB
build/cart-blocks/cart-items-frontend.js	299 B
build/cart-blocks/cart-line-items--mini-cart-contents-block/products-table-frontend.js	5.27 kB
build/cart-blocks/cart-line-items-frontend.js	433 B
build/cart-blocks/cart-order-summary-frontend.js	1.11 kB
build/cart-blocks/cart-totals-frontend.js	322 B
build/cart-blocks/empty-cart-frontend.js	346 B
build/cart-blocks/filled-cart-frontend.js	784 B
build/cart-blocks/order-summary-coupon-form-frontend.js	2.62 kB
build/cart-blocks/order-summary-discount-frontend.js	2.13 kB
build/cart-blocks/order-summary-fee-frontend.js	273 B
build/cart-blocks/order-summary-heading-frontend.js	455 B
build/cart-blocks/order-summary-shipping--checkout-blocks/order-summary-shipping-frontend.js	6.34 kB
build/cart-blocks/order-summary-shipping-frontend.js	427 B
build/cart-blocks/order-summary-subtotal-frontend.js	273 B
build/cart-blocks/order-summary-taxes-frontend.js	431 B
build/cart-blocks/proceed-to-checkout-frontend.js	1.16 kB
build/cart-frontend.js	45.4 kB
build/checkout-blocks/actions-frontend.js	1.41 kB
build/checkout-blocks/billing-address--checkout-blocks/shipping-address-frontend.js	4.12 kB
build/checkout-blocks/billing-address-frontend.js	891 B
build/checkout-blocks/contact-information-frontend.js	2.83 kB
build/checkout-blocks/express-payment-frontend.js	5.36 kB
build/checkout-blocks/fields-frontend.js	344 B
build/checkout-blocks/order-note-frontend.js	1.08 kB
build/checkout-blocks/order-summary-cart-items-frontend.js	3.66 kB
build/checkout-blocks/order-summary-coupon-form-frontend.js	2.78 kB
build/checkout-blocks/order-summary-discount-frontend.js	2.25 kB
build/checkout-blocks/order-summary-fee-frontend.js	275 B
build/checkout-blocks/order-summary-frontend.js	1.11 kB
build/checkout-blocks/order-summary-shipping-frontend.js	603 B
build/checkout-blocks/order-summary-subtotal-frontend.js	273 B
build/checkout-blocks/order-summary-taxes-frontend.js	431 B
build/checkout-blocks/payment-frontend.js	7.67 kB
build/checkout-blocks/shipping-address-frontend.js	996 B
build/checkout-blocks/shipping-methods-frontend.js	4.72 kB
build/checkout-blocks/terms-frontend.js	1.22 kB
build/checkout-blocks/totals-frontend.js	325 B
build/checkout-frontend.js	47.6 kB
build/mini-cart-component-frontend.js	16.6 kB
build/mini-cart-contents-block/empty-cart-frontend.js	364 B
build/mini-cart-contents-block/filled-cart-frontend.js	229 B
build/mini-cart-contents-block/footer--mini-cart-contents-block/products-table-frontend.js	4.69 kB
build/mini-cart-contents-block/footer-frontend.js	5.75 kB
build/mini-cart-contents-block/items-frontend.js	225 B
build/mini-cart-contents-block/products-table-frontend.js	290 B
build/mini-cart-contents-block/shopping-button-frontend.js	288 B
build/mini-cart-contents-block/title-frontend.js	367 B
build/mini-cart-frontend.js	1.72 kB
build/mini-cart.js	6.62 kB
build/price-filter-frontend.js	13 kB
build/price-format.js	1.19 kB
build/product-add-to-cart--product-button--product-category-list--product-image--product-price--product-r--a0326d00.js	223 B
build/product-add-to-cart--product-button--product-image--product-title.js	2.66 kB
build/product-add-to-cart--product-button.js	565 B
build/product-add-to-cart-frontend.js	6.96 kB
build/product-button--product-category-list--product-image--product-price--product-rating--product-sale-b--e17c7c01.js	499 B
build/product-button-frontend.js	1.85 kB
build/product-category-list-frontend.js	920 B
build/product-category-list.js	502 B
build/product-image-frontend.js	1.84 kB
build/product-image.js	1.07 kB
build/product-price-frontend.js	1.94 kB
build/product-price.js	1.5 kB
build/product-rating-frontend.js	1.15 kB
build/product-rating.js	731 B
build/product-sale-badge-frontend.js	1.09 kB
build/product-search.js	2.18 kB
build/product-sku-frontend.js	380 B
build/product-stock-indicator-frontend.js	1.03 kB
build/product-summary-frontend.js	1.33 kB
build/product-tag-list-frontend.js	916 B
build/product-title-frontend.js	1.29 kB
build/product-title.js	910 B
build/reviews-by-product.js	12.4 kB
build/reviews-frontend.js	7.02 kB
build/single-product-frontend.js	21.5 kB
build/stock-filter-frontend.js	7.32 kB
build/vendors--cart-blocks/cart-line-items--cart-blocks/cart-order-summary--cart-blocks/order-summary-shi--c02aad66-frontend.js	5.26 kB
build/vendors--cart-blocks/cart-line-items--checkout-blocks/order-summary-cart-items--mini-cart-contents---233ab542-frontend.js	3.14 kB
build/vendors--cart-blocks/order-summary-shipping--checkout-blocks/billing-address--checkout-blocks/order--5b8feb0b-frontend.js	4.75 kB
build/vendors--cart-blocks/order-summary-shipping--checkout-blocks/billing-address--checkout-blocks/order--decc3dc6-frontend.js	20.5 kB
build/vendors--mini-cart-contents-block/footer-frontend.js	6.86 kB
build/vendors--product-add-to-cart-frontend.js	7.53 kB
build/wc-blocks-data.js	9.87 kB
build/wc-blocks-editor-style-rtl.css	5.08 kB
build/wc-blocks-editor-style.css	5.08 kB
build/wc-blocks-google-analytics.js	1.56 kB
build/wc-blocks-middleware.js	930 B
build/wc-blocks-registry.js	2.7 kB
build/wc-blocks-shared-context.js	1.52 kB
build/wc-blocks-shared-hocs.js	1.14 kB
build/wc-blocks-vendors-style-rtl.css	1.28 kB
build/wc-blocks-vendors-style.css	1.28 kB
build/wc-blocks-vendors.js	59 kB
build/wc-blocks.js	2.63 kB
build/wc-payment-method-bacs.js	816 B
build/wc-payment-method-cheque.js	811 B
build/wc-payment-method-cod.js	909 B
build/wc-payment-method-paypal.js	837 B
build/wc-settings.js	2.61 kB

_{compressed-size-action}

[wavvves]

Hey @nielslange do you want to pull #6635 into this branch, and start integrating the new cart response? There are some issues @senadir raised, but client-facing API response won't change. Also, #6635 should be merged first so updating this with trunk will clean up that extra temporary code.

[nielslange]

Closing this issue, as #6645 builds on top of this.