fix balance validator on disperse input

[santteegt]

GitHub Issue

https://github.com/HausDAO/daohaus-app/issues/1800

Changes

Fixes the vault balance validator so the correct asset is evaluated (native or erc20)

Packages Added

None

Checks

Before making your PR, please check the following:

• [X] Critical lint errors are resolved
• [X] App runs and builds locally