fix(pages-components): schema type validation

[benlife5]

As far as I can tell, faq is the only place where a bad input type would cause an error as opposed to just returning undefined/empty data.

@mkilpatrick Do we want to throw errors or print warnings in other places?

For example:

const Product = (document: Record<string, any>, schemaType?: string) => {
  return {
    ...BaseSchema(document, schemaType ?? "Product"),
    ...PhotoGallerySchema(document.photoGallery),
    ...ReviewSchema(document.c_reviews),
    ...AggregateRatingSchema(document.c_aggregateRating),
    ...OfferSchema({
      url: "",
      priceCurrency: document.c_currency,
      price: document.price,
      priceValidUntil: document.expirationDate,
      itemCondition: document.stockStatus,
      availability: document.availabilityDate,
    }),
    description: document.description,
    sku: document.sku,
    mpn: document.mpn,
    brand: {
      "@type": "Brand",
      name: document.brand,
    },
  };
};

export const AggregateRatingSchema = (rating?: AggregateRating) => {
  return (
    rating && {
      aggregateRating: {
        "@type": "AggregateRating",
        ratingValue: rating.ratingValue,
        reviewCount: rating.reviewCount,
      },
    }
  );
};

If there is no c_aggregateRating field on the document, aggregateRating won't appear in the returned schema.

If c_aggregateRating is on the document but is a Number instead of an Object, Product will return undefined values

...
  aggregateRating: {
    '@type': 'AggregateRating',
    ratingValue: undefined,
    reviewCount: undefined
  },

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[mkilpatrick]

I think we return nothing if the object isn't what we expect. Confirm with @apav-dev.