Refine Customizable Table selector

Left: Dropdoiwn open
Right: Dropdown closed


The issue provides only a screenshot comparing the table selector with its dropdown open and closed. No source files, tests, entry points, or precise behavior are identified, so first locate the customizable table selector in the frontend and compare it with the screenshot. Done means the selector matches the intended open and closed states.

Written by the indexing model from the issue text.