Remove the `cell.queued` "dirty hack" 😺

[fonsp]

This builds on top of https://github.com/fonsp/Pluto.jl/pull/2989 by removing the mechanism all together... Needs more testing but I think we can do this!

[github-actions[bot]]

Try this Pull Request!

Open Julia and type:

julia> import Pkg
julia> Pkg.activate(temp=true)
julia> Pkg.add(url="https://github.com/fonsp/Pluto.jl", rev="remove-cell.queued-dirty-hack")
julia> using Pluto