Get basic compiling working with new CSS setup

resources/scripts/theme.ts

@@ -0,0 +1,10 @@
+import { BreakpointFunction, createBreakpoint } from 'styled-components-breakpoint';
+
+type Breakpoints = 'xs' | 'sm' | 'md' | 'lg' | 'xl';
+export const breakpoint: BreakpointFunction<Breakpoints> = createBreakpoint<Breakpoints>({
+    xs: 0,
+    sm: 640,
+    md: 768,
+    lg: 1024,
+    xl: 1280,
+});