Can't create pannel upward

[JonatasAmaral]

Issue description

On pointing a direction for creating a new page, "Up" and "Left" act just like "Down" and "Right" respectively.

Given the bellow example, i was expecting, on creating the new panel on upward direction, the "panel 3" to end up above "panel 2", it got bellow though.

The equivalent happens to --direction "Left" too, creating panel to the right instead.

Minimal reproduction

Open a zellijs session, and run the command to create new panel:

zellij action new-pane --direction "Up"

Other relevant information

Zellij version: 0.40.1 (latest)