grub with script, added missing packages, removed omz

grub/grub.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+GRUB_FILE="/etc/default/grub"
+
+# Ensure the file exists before proceeding
+if [[ -f "$GRUB_FILE" ]]; then
+    echo "Updating GRUB timeout to 0..."
+    
+    # Replace or add the GRUB_TIMEOUT line
+    if grep -q "^GRUB_TIMEOUT=" "$GRUB_FILE"; then
+        # Modify existing line
+        sed -i 's/^GRUB_TIMEOUT=.*/GRUB_TIMEOUT=0/' "$GRUB_FILE"
+    else
+        # Add it if missing
+        echo "GRUB_TIMEOUT=0" >> "$GRUB_FILE"
+    fi
+
+    grub-mkconfig -o /boot/grub/grub.cfg
+
+    echo "GRUB timeout set to 0 and configuration updated."
+else
+    echo "❌ $GRUB_FILE not found!"
+fi