We need to check if we can depened on the JS lib web3 that is LGPL-3.0 licensed

[hendrikebbers]

The hedera-mirror-node-explorer depends on [email protected] (and related libs like [email protected]). The license of the complete web3js project is LGPL-3.0 (see https://github.com/web3/web3.js/blob/4.x/LICENSE).

We need to check if the dependency is ok or need to be fixed. Since hedera-mirror-node-explorer is a product that we release including all dependencies I assume we have a problem here...

More details can be found at #15

[rbair23]

We may need to switch to use ethers.js instead (it is MIT licensed)