Remove non-working symbols and tidy up logic

themes/robbyrussell.zsh-theme

-local ret_status="%(?:%{$fg_bold[green]%}➜ :%{$fg_bold[red]%}➜ %s)"
-PROMPT='${ret_status}%{$fg_bold[green]%}%p %{$fg[cyan]%}%c %{$fg_bold[blue]%}$(git_prompt_info)%{$fg_bold[blue]%}%{$reset_color%}'
+local ret_status="%(?:%{$fg_bold[green]%}➜ :%{$fg_bold[red]%}➜ )"
+PROMPT='${ret_status} %{$fg[cyan]%}%c%{$reset_color%} $(git_prompt_info)'
 
-ZSH_THEME_GIT_PROMPT_PREFIX="git:(%{$fg[red]%}"
-ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
-ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%}) %{$fg[yellow]%}✗%{$reset_color%} "
-ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%}) "
+ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg_bold[blue]%}git:(%{$fg[red]%}"
+ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} "
+ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%}) %{$fg[yellow]%}✗"
+ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})"