feat: change user storage KDF

[Prithpal-Sooriya]

Description

This is a demo PR/Branch for changing the key hashing on user storage to Script.
We could also demo Argon2, but @noble has not audited this yet.

Related issues

Fixes:

Manual testing steps

1. Go to this page...

Screenshots/Recordings

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[Prithpal-Sooriya]

I believe N and P are the work factor levers.

Using OWASP configurations defined here.
https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#scrypt

From a performance perspective, these values seem "okay" from some automated testing, will need to actually hook it up to see the performance UX impact.

[Prithpal-Sooriya]

I'm closing this since there is a little more discussion to be done on this.
Most likely we will change the KDF and also perform some key caching.