Prompt for Native REPL when user types python in terminal

[cwebster-99]

As we are experimenting with the Native REPL, we are re-routing all Run in Terminal REPL commands and entry points to the Native REPL except for when a user explicitly types python in the terminal repl to launch a repl instance.

We might consider adding a prompt for when a user does this to try the Native REPL at some cadence (once per session, after typing their 3,4,5th time typing python, once per user, etc.) to try to drive traffic to the Native REPL

[Tyriar]

Consider using a quick fix for this instead of an annoying notification. Engagement would be less, but it would be far less annoying to the users that would prefer the terminal.