ISO - no default for encryption on/off - user should choose explicitly

[Patrick]

@Patrick

Later maybe…

Do you wish to use Full Disk Encryption (FDE)?

[ ] use FDE
[ ] do not use FDE

Setting up FDE later is very difficult.

The text needs more work probably if this is even realistic. The text
could be improved to explain what FDE is and whatnot.

“Setting up FDE later is very difficult.” - maybe only show if selecting
“no”

Ubiquity has a nice implementation.

related: Ubiquity / LVM / TPM