Supply Equilibrium - Revisit slider limits

[ckoopmann]

The slider limits for the Supply Equilibrium chart are currently:

• Issuance Rewards 2.5 / 5 %
• Burn Rate: 0 / 4.5 %

We should review those values and adjust.

Likely we will want to:

1. Reduce the lower bound on the issuance rewards
2. Reduce the upper bound on the Burn Rate (maybe 3.5%)

[JustinDrake]

Suggested new values:

• issuance rewards: 2% to 3.5% (shifting to a more conservative and realistic range)
• burn rate: 0% to 3% (again, a slightly more conservative and realistic range)