Breaking: #62595 - Remove SU change-to mode

See Issue #62595

Description

The permanent user switch has been removed from backend user list for a better UX.

Impact

The parameter “emulate” in the view helper “SwitchUser” is dropped. Using the argument causes an error “Argument “emulate” was not registered”.

Affected installations

Any installation using an extension that uses the view helper “SwitchUser” with “emulate” argument.

Migration

Drop the “emulate” argument in the view helper call.