DXCDT-320: Fix management of action triggers

[willvedd]

🔧 Changes

This PR attempts to improve the management of action with regards to triggers. Currently, there are two major issues:

• When creating actions, the interactive list of action triggers only lists post-login, prohibiting the selection of any other trigger
• When updating actions, the trigger in most (if not all) cases cannot be updated, with minor exceptions

In the case of action creation, the interactive prompt should display all currently available action triggers. Currently, it only displays post-login erroneously. This was a case of correcting some filtering logic.

In the case of the action update, while it is technically possible to update the trigger in certain cases, the majority of the time the trigger cannot be updated. AFAICT, the guidance for changing a trigger is to create a new action. For this reason, I am proposing to remove the ability to update a trigger. Otherwise, the operation will fail in the majority of cases.

📚 References

🔬 Testing

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)