Prerequisites

• Write a descriptive title.

Description of the new feature/enhancement

Assuming this: PowerShell/PowerShell#19518 gets merged, the current behavior of adding a separator for containers is made redundant because PowerShell will handle this internally and the PSReadLine implementation will interfere with user choice (users using a different separator, or attempting to turn the feature off).
PS 5.1 users may still want this feature so maybe it should check the PS version, or a user option should be added to configure this setting.

Proposed technical implementation details (optional)

No response