[FEATURE] Local version: Have the terraform apply write directly to the env file

[jayanthv86]

For the local version, I don't like that I have to go back to Okta to fetch the variables to update .env.

There are pretty much 4 variables that need to be updated if using the same Okta org:

CLIENT_ID CLIENT_SECRET ISSUER APP_TEMPLATE

Since the output of terraform apply gets the values back from Okta, can we update the .env file? I don't think client_secret is returned unless it is specified at the time of creating the app.