fix: increase overscran value

Author: aldbr

packages/diracx-web-components/src/components/shared/DataTable/DataTable.tsx

@@ -226,7 +226,7 @@ export function DataTable<T extends Record<string, unknown>>({
   // Estimated row height in px (MUI dense table row)
   const ROW_HEIGHT = 37;
   // Extra rows rendered above/below the visible area to prevent blank flashes
-  const OVERSCAN = 25;
+  const OVERSCAN = 50;
 
   const scrollContainerRef = useRef<HTMLDivElement | null>(null);