fix(genapi): fix product illustration (#4587)

Swap product illustration for correct one

Author: bene2k1

pages/generative-apis/index.mdx

@@ -6,7 +6,7 @@ meta:
 
 <ProductHeader
    productName="Generative APIs"
-   productLogo="inference"
+   productLogo="generativeApi"
    description="Generative APIs provide access to pre-configured serverless endpoints of the most popular AI models, hosted in European data centers and priced per 1M tokens used."
    url="/generative-apis/quickstart"
    label="Generative APIs Quickstart"