[Spike] Review history items for smart contract transactions

[JakeUrban]

We allow users to swap using Soroswap but when you execute a swap it shows up in your history as a generic invoke host function.
We can treat Soroswap as a special case set of contracts similarly to the SAC and label those operations explicitly to improve this.
Also, maybe better than that would be to more fetch contract specs for contract calls in any history item in order to display any Soroban op less generically.