hledger-ui; implement stats screen

[linuxcaffe]

What happens when you are looking at the Accounts screen, and you hit the "up" (left, h) key?

Answer: nothing..

.. what should happen? is there a layer "above" accounts? A higher overview? Yeah, I thinks so, the 'hledger stats' command output gives full context, files included, and other things that give meaning to the other screens.

So this feature request is to have stats-screen added to the top of the stack, "above" (left, h) the accounts-screen. The accounts-screen should still be the default, and where you land after hitting the esc key.

Of course, it could also be invoked with a keybinding.

[simonmichael]

Sounds interesting, someone should prototype it as an addon script.

[linuxcaffe]

addon script?? nahhh! Stats output (hledger stats) should (imho) be a ui built-in.

[simonmichael]

For prototyping. It's quicker and doesn't have to wait for me.