fix(nvim): apply consistent colors for asynctask across colorschemes (#376)
fix(nvim): apply consistent colors for asynctask across colorschemes (#376)

'Substitute' is not consistently "yellowish" for signalling a running
task. Try instead with 'DiffText' for a running task, 'DiffDelete'
for a failed task, and 'DiffAdd' for a successful task.

Co-authored-by: Kai Hoewelmeyer <31ea678c44dc4e8e22ccfd165592dd71a30e46ae@hoewelmeyer.eu>
kaihowl/dotfiles,kaihowl/dotfiles,kaihowl/dotfiles,kaihowl/dotfiles,kaihowl/dotfiles