Performance enhancements for mcm -- optimize images:

Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 110.5KiB (13% reduction).
Losslessly compressing…tacommunity Dynamics_0.png?itok=WXj7tlKz could save 51.2KiB (24% reduction).
Losslessly compressing…/public/Biodiversity_0.png?itok=xdARuwhL could save 40KiB (26% reduction).
Losslessly compressing…logical Connectivity_2.png?itok=Ai3s7Y-O could save 9.6KiB (6% reduction).
Losslessly compressing…er/public/telemetryNEW.png?itok=TO59GnkF could save 7.2KiB (3% reduction).
Losslessly compressing…ms/libraries/superfish/images/shadow.png could save 2.5KiB (44% reduction).