Put sleep on the correct pyscript file

Author: Archmonger

docs/examples/python/pyscript-hello-world.py

@@ -1,9 +1,6 @@
-from time import sleep
-
 from reactpy import component, html
 
 
 @component
 def root():
-    sleep(1)
     return html.div("Hello, World!")

tests/test_app/pyscript/components/hello_world.py

@@ -1,6 +1,9 @@
+from time import sleep
+
 from reactpy import component, html
 
 
 @component
 def root():
+    sleep(1)
     return html.div({"id": "hello-world"}, "hello world")