Change Rsync to Backup

- Change rsync menu to backup menu
- Add menu options for cloud and hdd backup
- Cloud backup uses rsync as before
- HDD backup uses snap-sync

.scripts/backup_to_hdd.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+sudo snap-sync \
+    --UUID c651c7af-e795-4eb0-9a13-83c6288880d1 \
+    --subvolid 5 \
+    --noconfirm \
+    --quiet