feat: add plymouth.sh although it's not working

gui/plymouth.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+set -e
+DIR=$(dirname "$(readlink -f "$0")")
+. "$DIR/../env.sh"
+
+log 'Setting up plymouth'
+
+# install dpes
+case "$PM" in
+    apt)
+        # install build tools
+        echo "to do"
+        exit -1
+        ;;
+    pacman)
+        ! has_cmd plymouth && yay -S --noconfirm --needed plymouth
+        ;;
+esac
+
+# configuration
+awk -F= '$1 == "HOOKS" && $2 !~ / udev plymouth / { sub(" udev ", " udev plymouth ") }; {print}' \
+    /etc/mkinitcpio.conf \
+    | sudo tee /etc/mkinitcpio.conf
+#sudo mkinitcpio -p linux
+
+awk '$0 ~ "^GRUB_CMDLINE_LINUX_DEFAULT=" && $0 !~ / splash / { sub("quiet", "quiet splash vt.global_cursor_default=0") }; {print}' \
+    /etc/default/grub \
+    | sudo tee /etc/default/grub \
+    && sudo grub-mkconfig -o /boot/grub/grub.cfg
+
+sudo plymouth-set-default-theme -R spinfinity