Chore: Fix "mode" in typescript example

Author: ejhammond

examples/typescript/responsiveSystem.ts

@@ -10,7 +10,6 @@ const breakpoints = {
 export const { ScreenClassProvider, useResponsiveProps, responsive } = createResponsiveSystem({
   defaultScreenClass: 'lg',
   breakpoints,
-  mode: 'desktop-first',
 });
 
 // ResponsiveProps takes 2 type args: the breakpoints, and the props