Incorrect handling of abstain votes

[alexkroeger]

Bug Description
Abstain votes are tallied as "no" votes in Uniswap governance proposal pages. Teton Finance voted abstain on proposal 13 but is tallied as "no."

Steps to Reproduce
https://sybil.org/#/proposals/uniswap/13

Expected Behavior
A clear and concise description of what you expected to happen.
Abstain votes should be counted separately from "no." Teton Finance in the above page should be "abstain."

Additional Context
Add any other context about the problem here (screenshots, whether the bug only occurs only in certain mobile/desktop/browser environments, etc.)