hotfix(medusa-plugin-contentful): Fixes image assets (#232)

packages/medusa-plugin-contentful/src/services/contentful.js

@@ -76,7 +76,7 @@ class ContentfulService extends BaseService {
     let assets = []
     await Promise.all(
       product.images
-        .filter((image) => image !== product.thumbnail)
+        .filter((image) => image.url !== product.thumbnail)
         .map(async (image, i) => {
           const asset = await environment.createAsset({
             fields: {
@@ -89,8 +89,8 @@ class ContentfulService extends BaseService {
               file: {
                 "en-US": {
                   contentType: "image/xyz",
-                  fileName: image,
-                  upload: image,
+                  fileName: image.url,
+                  upload: image.url,
                 },
               },
             },