more decimal places need to be allowed in amount inputs

[madvas]

Since any token is allowed, we certainly need to allow more than 3 decimal places for amount inputs, either in invoice or proposals, basically everywhere for token amount input

[madis]

Currently the UI component that handles the decimals is c-token-amount-input and the logic is the following:

ethlance/ui/src/ethlance/ui/component/token_amount_input.cljs

Line 24 in 371f81b

decimals-for-ui (min decimals max-ui-decimals)

Using the token decimals as defined in its smart contract directly could be one option, but it would make the up and down arrows unusable (as the increment is the last decimal, i.e. 0.000000000000000001 for ETH and 0.000001 for USDC.

Another option would be a more sophisticated UI (e.g. switching between WEI and ETH for ethereum) but it would be hard to come up with something universal for all the other tokens.

Do you prefer one of these or have a different solution in mind?