fix(ui): prevent modal overlays from inheriting margin-top from parent space-y containers

frontend/src/features/triage/TasksView.tsx

@@ -1488,7 +1488,7 @@ export const TasksView: React.FC<TasksViewProps> = ({
 
       {/* NEW LIST MODAL */}
       {showNewListModal && (
-        <div className="fixed inset-0 modal-overlay z-50 flex items-center justify-center p-4">
+        <div className="fixed inset-0 !m-0 modal-overlay z-50 flex items-center justify-center p-4">
           <div className="w-full max-w-sm panel-surface shadow-panel p-4 space-y-3">
             <div className="flex items-center justify-between border-b border-border pb-2">
               <h3 className="text-sm font-semibold text-main flex items-center gap-1.5">