Support backgrounding with Ctrl+Z

[WardBrian]

Is your feature request related to a problem? Please describe.

I am really enjoying this tool. I'm planning a talk where my reason for wanting to use the terminal is a lot of demo integration. It would be very nice if I could Ctrl+Z to background the app, do part of my demo, then fg to get back to the slide I left off on.

Describe the solution you'd like
This should be built-in to the terminal, so I think the app just needs to not intercept this keybind

[WardBrian]

I did some more digging and this might actually require work in the upstream packages slides uses:
charmbracelet/bubbletea#497
charmbracelet/bubbletea#500

[maaslalani]

Thanks for digging @WardBrian! I appreciate it and yeah seems like this is blocked on upstream packages.