iOS. Banana split backup. Has no restrictions for number of shards

[stepanLav]

Environment: TestFlight
Version 6.3.2

Detail description:

There is no upper\lower boundary for "banana split" shards. That may lead to error.

The operation couldn't be completed.
(PolkadotVault.ServiceError error 1.)

Example:

RPReplay_Final1741007068.MP4

Scenario:

1. Open Keyset
2. Click ...
3. Banana Split Backup
4. Number of QR Code shards - enter high number, ex - 666

Actual result:
Fall in error - PolkadotVault.ServiceError error 1.

Expected result:
Has upper boundary for "banana split" shards

Additional information:
If user put 0 in the field it also shows the error

Error from banana split:

Error: Number of shares must be an integer between 2 and 2^bits-1 (255), inclusive. To create 666 shares, use at least 10 bits.