Update okta instructions to ensure the Classic UI view is selected

What does this MR do?

Looks like OKTA added a Developer UI alongside their Classic UI. When a user creates an account with Okta and selects his role as "Developer", Okta redirects automatically to Developer UI instead of Classic UI. This MR adds an additional step in the Okta admin panel to ensure that the user turns on Classic UI which is the propper admin panel that we need the settings bellow configured.

Related issues

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