Add possibility to rearrange columns and disable some of them

[eriksrocha]

You could add the possibility of reorganizing the KeyVault columns and disabling some of them to create a standard view. I use KeyVault frequently because I manage a lot of Secrets and it would help me a lot.

For example, remove the "Created" column and leave the "Updated" column in another position.

[cricketthomas]

The columns are currently able to be dragged, it's just that the drag position isn't persisted anywhere.

I can look into creating a persistent state and allowing selective removing of some columns.