Add selection background in Alacritty terminal

[eulixir]

What’s up @daltonmenezes!

I am currently using the alacritty terminal, and I came across a detail.

When selecting some lines, the background is white (probably this came by default of the terminal), my suggestion is to add this line in aura-theme.yml:

selection:
  text: CellForeground
  background: '#2C293A'

Before:

After: