Move zsh prompt to zsh/prompt.sh

dotfiles/lib/zsh/prompt.sh

@@ -0,0 +1,15 @@
+function current_directory() {
+    local PWD=$(pwd)
+    echo "${PWD/#$HOME/~}"
+}
+
+function git_prompt_info () {
+    if test -z $(parse_git_branch);
+    then
+        echo ""
+    else
+        echo " %{$FG[239]%}on%{$reset_color%} %{$FG[255]%}$(parse_git_branch)%{$reset_color%}"
+    fi
+}
+
+PROMPT='%{$FG[040]%}%n%{$reset_color%} %{$FG[239]%}at%{$reset_color%} %{$FG[033]%}$(hostname -s)%{$reset_color%} %{$FG[239]%}in%{$reset_color%} %{$terminfo[bold]$FG[226]%}$(current_directory)%{$reset_color%}$(git_prompt_info) %{$FG[239]%}with $(colored_sandbox_string)%{$FG[255]%} '