Native REPL should start on the project folder

[heliosdrm]

After starting the native REPL:

import os
os.getcwd()

does not return the project folder as expected, but the folder that contains the VS Code executable.

[karthiknadig]

Looks like the cwd is not set when launching the REPL server.

[anthonykim1]

As mentioned in #23656 (comment), working to set proper directory for when REPL launches.