Add Windows Hello biometric authentication for vault access

[Imontlaji]

Is your feature request related to a problem? Please describe.
I'm frustrated with repeatedly entering my master password to access sensitive vault content, especially when using my personal Windows device that already has biometric authentication capabilities. This manual entry process feels time-consuming and less secure compared to modern authentication methods.


Describe the solution you'd like
Integrate Windows Hello authentication as an alternative vault unlocking method. Users should be able to:

1. Enable Windows Hello (face/fingerprint/PIN) in security settings
2. Choose biometric authentication as primary unlock method
3. Still maintain password fallback option
4. Seamlessly switch between biometric and password authentication
   

Describe alternatives you've considered

1. Using third-party credential managers with Windows Hello support - but this creates dependency on external tools
2. Implementing device-level login biometrics - but this doesn't protect vault-specific content
3. Password manager browser extensions - but these lack direct integration with system-level security features
   

Additional context

1. Windows Hello uses hardware-backed trusted platform modules (TPM) for secure credential storage
2. Many security-focused apps (1Password, BitLocker) already successfully implement this pattern
3. Could position Tabby as a more modern/secure terminal tool compared to competitors
4. Sample implementation reference: https://learn.microsoft.com/en-us/windows/security/identity-protection/hello-for-business/hello-overview

[jkarpiu]

Definite bump