feat: theme export문 추가

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@fun-eat/design-system",
   "description": "펀잇 디자인시스템 라이브러리",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",

src/index.ts

@@ -1,4 +1,5 @@
 export { default as FunEatProvider } from './FunEatProvider';
+export { default as theme } from './styles/theme';
 
 export { default as Badge } from './Badge';
 export { default as BottomSheet } from './BottomSheet';