feat(git-prompt): display untracked files count

Closes #8435
Closes #4880

plugins/git-prompt/git-prompt.plugin.zsh

@@ -63,7 +63,7 @@ git_super_status() {
           STATUS="$STATUS$ZSH_THEME_GIT_PROMPT_CHANGED$GIT_CHANGED%{${reset_color}%}"
       fi
       if [ "$GIT_UNTRACKED" -ne "0" ]; then
-          STATUS="$STATUS$ZSH_THEME_GIT_PROMPT_UNTRACKED%{${reset_color}%}"
+          STATUS="$STATUS$ZSH_THEME_GIT_PROMPT_UNTRACKED$GIT_UNTRACKED%{${reset_color}%}"
       fi
       if [ "$GIT_CHANGED" -eq "0" ] && [ "$GIT_CONFLICTS" -eq "0" ] && [ "$GIT_STAGED" -eq "0" ] && [ "$GIT_UNTRACKED" -eq "0" ]; then
           STATUS="$STATUS$ZSH_THEME_GIT_PROMPT_CLEAN"
@@ -83,7 +83,7 @@ ZSH_THEME_GIT_PROMPT_CONFLICTS="%{$fg[red]%}%{✖%G%}"
 ZSH_THEME_GIT_PROMPT_CHANGED="%{$fg[blue]%}%{✚%G%}"
 ZSH_THEME_GIT_PROMPT_BEHIND="%{↓%G%}"
 ZSH_THEME_GIT_PROMPT_AHEAD="%{↑%G%}"
-ZSH_THEME_GIT_PROMPT_UNTRACKED="%{…%G%}"
+ZSH_THEME_GIT_PROMPT_UNTRACKED="%{$fg[cyan]%}%{…%G%}"
 ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg_bold[green]%}%{✔%G%}"
 
 # Set the prompt.