chore: add frontend-app-learner-portal-enteprise localhost to trusted origins

[brobro10000]

Description

Adds localhost port for the MFE, frontend-app-learner-portal-enterprise to the trusted origins list. This allows us to test features locally such as universal link.

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• Which edX user roles will this change impact? Common user roles are "Learner", "Course Author",
  "Developer", and "Operator".
• Include screenshots for changes to the UI (ideally, both "before" and "after" screenshots, if applicable).
• Provide links to the description of corresponding configuration changes. Remember to correctly annotate these
  changes.

Supporting information

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Testing instructions

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Deadline

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Other information

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• Does this change depend on other changes elsewhere?
• Any special concerns or limitations? For example: deprecations, migrations, security, or accessibility.
• If your database migration can't be rolled back easily.