Extension: ZIP32 Derivation UI

[jurevans]

The SDK package currently supports specifying a custom path for shielded keys:

const shieldedKeys = sdk.keys.deriveShieldedFromSeed(seed, path);

But currently, we only derive keys for the default path in the extension.

The extension could be updated to allow users to:

• Specify a Zip32 path for deriving additional shielded keys from an existing seed
• Generate "random" shielded keys by first generating random Seed bytes, and deriving new shielded keys from the default Zip32 path

Figma (for transparent keys - UI may be a bit different for shielded):

https://www.figma.com/design/NFyHbLZXBSl3aUsMxtffvV/Namada-End-User-Interface-V1.0-%2F-Phase-1%3A-Block-Party?node-id=6361-75215&t=vhxKQW05qTF6srmX-1

[ShinySyntax]

Hello, I am James Kano I am a fullstack blockchain egineer. I wanna contribute in this task. I sent request to figma. mail: user.jamess128@gmail.com Thanks.