Further customizations for backup sanitization's

[privsec]

Can we remove the drop down functionality and just select via checkboxes

1. When we want to have our cloudron backup
2. How many backups per day/week/month we want persisted
3. When yo auto delete a backup

For example
I want to select that I want to take 2 backups of my cloudron every week.
After 90 days, I want to keep only the last backup of each month.
At 120 days, delete the oldest backup of my cloudron so that I always only have a max of 3 monthly backups kept.

Tl;dr
2 weekly backups, kept for 90 days each.
On day 91 delete all but the last backup of each month
On day 121 delete the oldest backup of the cloudron