fix: update connected namespaces in storage on switch account

[RyukTheCoder]

Summary

Fixed two bugs:

Update connected namespaces for wallets in storage on switch account

Fixes # (RF-2098)

How did you test this change?

Tested this change by connecting phantom wallet on solana namespace. Observed that solana namespace is set in local storage in hub-v1-last-connected-wallets for phantom wallet. After that I switch to an account which only contains ethereum address and observed that local storage updated as result of disconnecting wallet.

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• Implemented a user interface (UI) change, referencing our Figma design to ensure pixel-perfect precision.

[yeager-eren]

lgtm