Improve method display

[xlc]

What I want

What I got

I don't think average user is able to figure out what is call index 0x0f03

[jacogr]

Yes, I know, but really not going to pull params decoding as in apps in here. Maybe someday that package gets a bit of TLC, is extract and can be used. Until then, have to live with toHuman for a while longer.

[jacogr]

As to specifics, the callIndex is not very "human", may want to remove it

https://github.com/polkadot-js/api/blob/master/packages/types/src/generic/Call.ts#L232

[xlc]

Another thing will be helpful is make arguments named. So instead of array, make it

{
"proposal": "0x...",
"index": 13,
"approve": true,
}