Fix prompt format for ZSH
Fix prompt format for ZSH

The settings to make for promt stopped working normally in ZSH for an
unknown reason, so I removed the display of information about the git
state, leaving the most common style between BASH and ZSH, but all the
same, I kept the display of information about git for BASH.

By-Vasiliy/dotfiles,By-Vasiliy/dotfiles