refactor: get funding round factory information from the subgraph instead of from contract

[yuetloo]

Currently, the code makes 5 contract calls to get all the information instead of just 1 subgraph call to get all information.

[cold-briu]

Hi there!
I'm having a similar issue, but I've couldn't find the issue.
Can you share how you found that its get funding round factory information hopefully we can fix it togheter

[yuetloo]

@cold-briu , this issue was to track refactoring of this function:
https://github.com/clrfund/monorepo/blob/develop/vue-app/src/api/round.ts#L131

But, a lot have changed in the MACI v1 integration branch, so, this issue will be addressed as part of that branch.