Make suggestions on custom card

[mohamedalichelbi]

Is your feature request related to a problem? Please describe.
In custom cards, users have text inputs with only type checks (string, number ...).
Would be nice to assist further using auto-complete suggestions on function names and (if possible?) function arguments

Describe the solution you'd like
When a user chooses an address on the custom card, we can fetch the contract associated with that address from the chain, then use this package to parse function names and arguments. Function names can be used as auto-complete suggestions in the function name input.
Not sure of the following, but can we assist further with argument names & types?