[CMP #2] Lower the requirement to post proposals on snapshot.org

Objective:

Allow more holders to create or sponsor governance proposals on snapshot.org.

High Level Details:

In order to post a proposal on snapshot.org, a holder is required to have 1% of the VOLTA circulating supply, currently around 2.7k VOLTA (~$450k at the current price). I propose to lower the threshold to 0.5% of the circulating supply.

Low Level Details:

As it's already happening, the team has to calculate 1% of circulating supply and periodically update the threshold on snapshot.org. Simply use 0.5% for that calculation instead. The requirement must be updated as soon as possible if this vote passes.