Progress bar - foreachprogress prints multiple new lines

[FedeClaudi]

When adding multiple jobs in separate threads foreachprogress prints new lines. Also can't set the style of individual jobs separately.
Bug first discovered by @gitboy16 at #202

using Term
using Term.Progress

pbar = Term.ProgressBar(;colors="#11CF62")

foreachprogress(1:100, pbar,   description = "Progress...", parallel=true) do i
    foreachprogress(1:5, pbar, description = "Task $i [thread $(Threads.threadid())] ...") do j
        sleep(rand() / 5)
    end
end