Create setting for Python execution to be on Native REPL or Terminal #23458

With the IW REPL Experiment, we should create setting to correctly bind shift+enter to send Python command to REPL in IW or Terminal. This also means we would only show the relevant context menu when user right clicks on their editor screen.

For example, if user has toggled on their settings to Send Python command to Terminal(Default and for control group of experiment), shift+enter would send Python command to Terminal and context menu will NOT show Run selection/line in Python REPL

If the user has toggled on their settings to Send Python command to REPL (on for treatment group of the experiment), shift+enter would send Python command to REPL with IW UI, and context menu via right clicking on editor screen will NOT show Run selection/line in Terminal