Grid column chooser loses input focus when swapping columns between panes

[ghost]

See discussion here https://xhio.slack.com/archives/C4MF830H5/p1750451861458819

Steps to Reproduce:

1. Open toolbox and navigate to Grids -> Standard
2. Click the "Choose Columns" icon to open the column chooser popover
3. In the column search input element, type in any criteria to get a filtered list of items (NOTE: must return results in the left column)
4. Double click on any of the items to add it to the grid (move from left to right) - Note that double clicking seems to be required, vs using the carets to move the items
5. In the input element double click to select all your previous search text
6. Start typing a new search critiera (NOTE it must product results for this issue to occur)

BUG: The input loses focus after the first character is types EXPECTED: User should be able to type in the full criteria