fix(tables): reset didDragRef in handleDragEnd to prevent stale flag

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/tables/[tableId]/components/table/table.tsx

@@ -3181,6 +3181,7 @@ const ColumnHeaderMenu = React.memo(function ColumnHeaderMenu({
   }, [])
 
   const handleDragEnd = useCallback(() => {
+    didDragRef.current = false
     onDragEnd?.()
   }, [onDragEnd])