useToken refetches token metadata

[bbengamin]

Describe the bug
When switching browser tabs useToken refetches token metadata.
Data fetching is done through SWR library.
tokenAddress briefly becomes null when switching tabs, useToken passes tokenAddress as a dependency, so when tokenAddress changes value SWR executes RPC call once again

To Reproduce
Steps to reproduce the behavior:

1. Go to swap form on '/'
2. Click Select token and select any item
3. Jump to any other tab in your browser
4. Wait a second and go back
5. See in network tab that new request is made

Expected behavior
Token metadata is fetched once when token is selected.

Screenshots

Desktop (please complete the following information):

• OS: Linux
• Browser google-chrome-stable
• Version 131.0.6778.264

[esteblock]

Hello @bbengamin the PR was merged however, the token balance is still upgraded every time users open the token list

Screencast.from.2025-05-26.11-04-53.webm

It is possible to fix this. We only need to recalculate token balances if some action is triggered, like a swap.

[esteblock]

First issue solved in #628