Migrate components/hooks to hydrogen-ui

[elisenyang]

• [x] Image
• [x] Video
• [x] ExternalVideo
• [x] MediaFile
• [x] ModelViewer
• [x] Money
• [x] useMoney
• [x] Metafield
• [x] ShopPayButton
• [x] ProductPrice
• [x] flattenConnection
• [x] parseMetafield
• [x] parseMetafieldValue
• [x] ShopifyProvider
• [x] useShop
• [ ] ~useLocalization~
• [x] ProductOptionsProvider
• [x] useProductOptions
• [x] CartProvider
• [x] useCart
• [x] CartLineProvider (matt) https://github.com/Shopify/hydrogen-ui/pull/48
• [x] useCartLine (matt) https://github.com/Shopify/hydrogen-ui/pull/48
• [ ] CartLines (matt) https://github.com/Shopify/hydrogen-ui/pull/48
• [x] CartCost
• [ ] CartLine
• [x] #2277
• [ ] CartLinePrice
• [ ] CartLineProductTitle
• [ ] CartLineQuantity
• [x] AddToCartButton (matt) https://github.com/Shopify/hydrogen-ui/pull/58
• [x] BuyNowButton (matt) https://github.com/Shopify/hydrogen-ui/pull/62
• [x] CartCheckoutButton (matt) https://github.com/Shopify/hydrogen-ui/pull/60
• [ ] CartShopPayButton (matt) https://github.com/Shopify/hydrogen-ui/pull/63
• [ ] CartLineQuantityAdjustButton

[frehner]

I think I have done everything that isn't Cart-related.