connLimiter limits should harmonize with existing Resource Manager limits

[MarcoPolo]

There are different ways to set resource manager limits from connection prefix limits. This is confusing, and we should consolidate to the struct based limit config. See #3431 for context.

[ChayanDass]

Hi @MarcoPolo, I'd like to take this issue ... could you assign me this?

[MarcoPolo]

No need to assign. Just give it a go. Look at the existing PR as well