gitfast: fix the prompt colour
gitfast: fix the prompt colour

We can add colour in Zsh without the need of pcmode.

Signed-off-by: Felipe Contreras <de77a8b9cd239b204c19c52ed62e48ab47243362@gmail.com>

rakeshbala/oh-my-zsh,rakeshbala/oh-my-zsh,rakeshbala/oh-my-zsh,rakeshbala/oh-my-zsh