Be able to switch the pane "focus" of my cursor programmatically

[StevenBucher98]

Description of the new feature

I want to be able to run a command in one pane and then have my cursors focus be able to shift to the other frame. This is mainly for AI Shell where after a someone uses the command /code post to post code responses to their working shell that their cursor is also shifted to the left in order to help speed of running the commands suggested. Related issue: PowerShell/AIShell#311

In the GIF below, I have to click on the left side to shift my focus and be able to execute the command inserted.

Proposed technical implementation details

No response