Feature request: Option to use physical source of (entropy e.g. dice) for password generation

**Is your feature request related to a problem? Please describe.**
Rather than rely on device PRNG, it would be good to have an option to input the results of physical dicerolls for the password generator.

**Describe the solution you'd like**
When generating a new password, have a screen to input results of sequential rolls of a 6 sided die (see screenshot below). As more rolls are entered, have some kind of indicator of the strength of the password that will be generated from this number of rolls.

**Describe alternatives you've considered**
[Diceware Password Generator from FDroid](https://f-droid.org/packages/com.aptasystems.dicewarepasswordgenerator) has this option but it only creates wordlist/diceware passphrases. That's where the following screenshot is from. The project was [last updated in 2018](https://github.com/jeffisaak/diceware-pass-gen), but maybe there's an API the two apps can use to communicate. It also already implements diceware passphrase generation(#218 )

**Additional context**


The issue names no files or tests. Start by reviewing the existing diceware implementation referenced as #218 and the linked Diceware Password Generator, then clarify the Android input flow, entropy-strength indicator, and password-generation behavior. Done means physical die rolls can be entered and used to generate a password with understandable strength feedback.

Written by the indexing model from the issue text.