MIP 109 - Optimistic Rewards v1.1

Redefine the optimistic rewards framework as follows:

• as before, all rewards changes will require 24 hours notice in the forum the Morpho Association can increase the global rewards rate per chain by at most +30% per week
• there is no restriction on the increase on per-asset rewards rates, as long as this does not increase the global rate per chain by more than 30%
• there is no restriction on reductions in the reward rate, either globally or per-asset.
• authorize the Morpho Association to add new rewarded assets at not more than the highest reward rate among existing assets