⭐Feature request - add support for commit reordering and amending non-latest commit

[NewtonChutney]

Is your feature request related to a problem? Please describe.
I'd like support for commit reordering like in lazygit.
I frequently have to add a temporary commit when working on features, but later discard that temp commit.
So I end up keeping that commit on top.

And related is the ability to amend older commits, also available in lazygit.

Describe the solution you'd like
To be at feature parity with lazygit with respect to the ability of amending commits.

Describe alternatives you've considered
NA

Additional context
I really like the space to select functionality in gitUI vs the shift+arrows in lazygit.
In case gitui goes on to support squashing, this workflow will be superior in supporting squashes of non-consequent commits.