- Remove the drag-and-drop FilterBuilder in favor of the existing
'+ Add filter' row editor in the Column Filters popover
- Debounce filter value edits (400ms) so a query only fires after the
user stops typing, fixing a race where the in-flight fetch guard
silently dropped the final filter value
- Make every toolbar toggle (filter, sort, auto-refresh, show/hide
columns, export, bulk actions) a clean plain toggle by wrapping the
button + dropdown in a shared ref so the outside-click handler no
longer fights the button click