Add function block screenshots

Author: TheodoreSpeaks

apps/docs/content/docs/en/blocks/function.mdx

@@ -112,7 +112,15 @@ print(json.dumps(result))
 
 The Function block supports Python as an alternative to JavaScript. Python code runs in a secure [E2B](https://e2b.dev) cloud sandbox.
 
-{/* TODO: Screenshot of the Function block with Python language selected */}
+<div className="flex justify-center">
+  <Image
+    src="/static/blocks/function-python.png"
+    alt="Function block with Python selected"
+    width={400}
+    height={500}
+    className="my-6"
+  />
+</div>
 
 ### Enabling Python