[PROPOSAL] Reduce SBR emissions by 50%

[rockooor]

Summary

Discussion here: https://discord.com/channels/835104494421016586/1220256829641068664

Currently the gauges emit 1M SBR per day, we should experiment with a lower amount of emissions. This decreases sell pressure on the token, but also reduces the APY from SBR emissions. However as the SBR emission APY is mostly on UXD and greatly above ecosystem rate, at this point in time the higher-than-average APY does not lead to more liquidity in the gauge, meaning we should be able to safely lower the emission rate.

Actions

Reduce the daily emission of SBR from 1M SBR per day to 500K SBR per day.