Add motion tokens to globals.css (#235)

Author: lukasoppermann

src/globals.css

@@ -1,5 +1,6 @@
 @import "@primer/primitives/dist/css/base/size/size.css";
 @import "@primer/primitives/dist/css/base/typography/typography.css";
+@import "@primer/primitives/dist/css/base/motion/motion.css";
 @import "@primer/primitives/dist/css/functional/size/border.css";
 @import "@primer/primitives/dist/css/functional/size/breakpoints.css";
 @import "@primer/primitives/dist/css/functional/size/size-coarse.css";