chore: cssへのpathを明示的に指定

Author: kspace-trk

package.json

@@ -13,7 +13,9 @@
     "./runtime": {
       "types": "./dist/runtime/index.d.ts",
       "import": "./dist/runtime/index.mjs"
-    }
+    },
+    "./runtime/*": "./dist/runtime/*",
+    "./dist/*": "./dist/*"
   },
   "main": "./dist/module.mjs",
   "typesVersions": {