adding icons to mdlean buttons

[bigbadbrad]

This isn't a bug, but how can icons be added to menuItems.ts to display in navbar?

When I add icons to the menuItems, I get the error:
Error: Objects are not valid as a React child (found: object with keys {FaUser}). If you meant to render a collection of children, use an array instead.

[FredericHeem]

Use createElement instead of bracket, see #559

[bigbadbrad]

Perfect thx!