allow users to move a row and save the position

[ninetteadhikari]

This is blocked by https://github.com/hikaya-io/dots/issues/1761

• row indices are not saved in the BE. this needs to be saved first.

[andrewtpham]

This is the child issue: https://github.com/hikaya-io/hakawati/issues/298 and it will be resolved by completing this issue.