core: update live-install and little bit cleanup

Author: sijanthapa171

live-install.sh

@@ -359,6 +359,8 @@ else
   info "Skipping variables.nix editing as requested or no editor available."
 fi
 
+clear
+
 # Partitioning method selection
 info "Choose partitioning method:"
 echo "1) Automatic (for single OS or clean disk)"
@@ -548,6 +550,8 @@ else
   fi
 fi
 
+clear
+
 # Choose filesystem type
 info "Choose a filesystem for root partition:"
 echo "1) ext4"
@@ -915,6 +919,8 @@ cp -r ./ /mnt/etc/nixos || {
   exit 1
 }
 
+clear
+
 # Run nixos-install
 info "Installing system..."
 nixos-install --flake "/mnt/etc/nixos#$selected_host" --no-root-passwd || exit 1