FEAT: Support password command

[Brixy]

Is your feature request related to a problem?

I'm on a minimal OS: Void Linux, wayland, river + a window manager.

Gnome Keyring is not a a default here.

Describe the solution you'd like

It would be excellent if matcha supported a password command.

Many (email) related TUIs do:

• isync supports PassCmd
• msmtp supports passwordeval

This would enable you to use pass, Gopass and many (GUI) password managers with CLI support.

I use age + a tiny script for password management.

Thanks a lot for matcha. Excellent work!

Describe alternatives you've considered

No response

Additional context

No response