Fix invested amount when claiming tokens

[hieronx]

When claiming tokens, the UI was showing in one investor's case:

Invested 529,377 USDC
Token amount 487,053 DYF1

It should have been

Invested 500,000 USDC
Token amount 487,053 DYF1

instead.

The token amount here is correct, that is based on vault.maxMint. The invested amount is incorrect, that is now maxMint * currentTokenPrice, but should be using vault.maxDeposit instead.