Adjust install, file-copy, and theme logic after first run on arch linux

box_setup.sh

@@ -28,7 +28,7 @@ echo "---- settings vars for system type -----"
     [[ "$setup_os" = "linux" ]] && {
         case $setup_distro in
             (arch | artix)
-                install_cmd="sudo pacman -S"
+                install_cmd="sudo pacman -S --noconfirm"
                 update_pkg_manager_and_defs_cmd='' # don't; update system instead?
                 update_pkgs_cmd='sudo pacman -Syu'
         	;;
@@ -58,3 +58,5 @@ source $ZDOTDIR/.zshenv
 source $ZDOTDIR/.zshrc
 ./install_programs.sh $1
 
+echo "setting the default theme: $DEFAULT_THEME_NAME"
+$DIR_SCRIPTS/theme-set $DEFAULT_THEME_NAME