Add support for generating the users fingerprint

[Hinton]

Type of change

- [ ] Bug fix
- [x] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [ ] Build/deploy pipeline (DevOps)
- [ ] Other

Objective

Add support for generating the users fingerprint using the private key from EncSettings.

Before you submit

• Please add unit tests where it makes sense to do so (encouraged but not required)

[codecov]

Codecov Report

Attention: 26 lines in your changes are missing coverage. Please review.

Comparison is base (8dd2e45) 46.29% compared to head (55f2e06) 46.50%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
crates/bitwarden-uniffi/src/platform/mod.rs	0.00%	16 Missing ⚠️
crates/bitwarden/src/platform/client_platform.rs	0.00%	9 Missing ⚠️
crates/bitwarden-json/src/client.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #474      +/-   ##
==========================================
+ Coverage   46.29%   46.50%   +0.20%     
==========================================
  Files         153      154       +1     
  Lines        7080     7144      +64     
==========================================
+ Hits         3278     3322      +44     
- Misses       3802     3822      +20     

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