fix: allow dragging to grid end (#8745)

Signed-off-by: mertmit <mertmit99@gmail.com>
Co-authored-by: Raju Udava <86527202+dstala@users.noreply.github.com>

packages/nc-gui/components/smartsheet/grid/useColumnDrag.ts

@@ -58,7 +58,7 @@ export const useColumnDrag = ({
     const lastViewCol = gridViewCols.value[lastCol.id!]
 
     // if nextToViewCol/toViewCol is null, return
-    if (nextToViewCol === null || lastViewCol === null) return
+    if (nextToViewCol === null && lastViewCol === null) return
 
     const newOrder = nextToViewCol ? toViewCol.order! + (nextToViewCol.order! - toViewCol.order!) / 2 : lastViewCol.order! + 1
     const oldOrder = toBeReorderedViewCol.order