Integrate tokenID and other related dpos constants to be used for dpos governance

[eniolam1000752]

Description

In the delegate feature, there is a need to know the token and some other dpos related constants that would be used for dpos governance on a particular chain since a user can have more than one token balance for that given chain.

Motivation

Service would be exposing an endpoint which would be able to return these constants(this would be addressed in this service 's issue

Additional Information

• Create a useDposConstants query hook to get dpos constants
• Consume useDposConstants to get the tokenIDDPoS and roundLength and integrate into the edit vote feature
• Implement unit test for useDposConstants.