Feature: option to sort by last used

[Azarattum]

Command palette in VSCode allows to quickly reuse the last action by putting last used actions above others. It would be nice to have an option in Commander to achieve similar behavior. For example by adding a "LAST_USED" key to sort_by option. If a command hasn't been ever used, sorting falls back to other values. If possible, it would also be convenient to track usage stats per working directory (so it is separated between projects).