CrmUi - Fix tabSetOptions variable

[colemanw]

Overview

Fixes JS error caused by #23749 refactoring.

Before

JS Error when using the MapPins extension.

After

Core code is now correct. I'll submit a PR to MapPins because they are still treating the object as if it were a string.

Technical Details

Prior to #23749 this had been passing an object around as a string.
During the refactoring it was treated as an object but still left as a string param.
Now it's passed as an object.

[civibot]

(Standard links)

• If this is your first pull-request for CiviCRM, please browse CONTRIBUTING.md for information about the development and testing processes.
• If you are reviewing this pull-request, you may wish to consult the test sites and the Review Standards (long template, short template).

[totten]

There appears to be no discoverable impact outside of that extension, so the only question is whether the change might cause some other regression. So I did some r-run on the wizard widget - and it seems to behave as well as before.

(Note that I found a different/pre-existing bug in the wizard; but it originated a few years ago, so I filed separately as https://lab.civicrm.org/dev/core/-/issues/3791.)

@colemanw Note that this needs an explicit port for 5.53/master.