Enable launcher as overlay vs fixed panel

[jbriales]

Hi!
Do you think it would be possible to implement the launcher feature as an overlay in the GUI instead of a fixed panel?
The idea would be to have a UI more similar to that of the palette in VSCode, where you would:

• Call the launcher popup via a binding, say C-S-q.
• Search for the command to run
• Press enter -> Command runs and the launcher popup/overlay disappears.

Curious to know what would be the potential complexity of implementing this as an option/alternative.
I would be up for giving it a try if the author thinks this is doable with the existing code.