feat: add logos to sdk cards

Author: Kapil Gowru

fern/products/sdks/fern-folder.mdx

@@ -33,7 +33,7 @@ in different languages.
     ### Generate an SDK in your desired language
 
   <CardGroup cols={3}>
-    <Card title="TypeScript" icon="fa-brands fa-ts" href="/sdks/generators/typescript/quickstart">
+    <Card title="TypeScript" icon={<img src="./images/icons/ts-light.svg" alt="TypeScript logo"/>}  href="/sdks/generators/typescript/quickstart">
     </Card>
     <Card title="Python" icon="fa-brands fa-python" href="/sdks/generators/python/quickstart">
     </Card>