!WIP fix: fix balance not updating on fetching balance with different wallet types

[RyukTheCoder]

Summary

The fetchBalance function previously assumed it would only be called with a single walletType, leading to potential issues when triggered by the 'refetch all' button in the dapp. This pull request eliminates that assumption, resolving the problems associated with the 'refetch all' feature.

Fixes # (issue)

How did you test this change?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

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.