Updates client to point to localhost:8241

We can't control the environment, but it's printing out the wrong one
for mini-mode, which confuses people. If it prints it out for postgres mode in local env it
should redirect through a prompt in the UI.

ui/sdk/src/hamilton_sdk/api/constants.py

@@ -1,2 +1,2 @@
 HAMILTON_API_URL = "http://localhost:8241"
-HAMILTON_UI_URL = "http://localhost:8242"
+HAMILTON_UI_URL = "http://localhost:8241"  # optimizing for mini-mode