fix typing generation

Author: shuding

package.json

@@ -6,10 +6,11 @@
   "files": [
     "dist/**"
   ],
+  "types": "./dist/index.d.ts",
   "repository": "shuding/cobe",
   "license": "MIT",
   "scripts": {
-    "build:esm": "node scripts/build.js",
+    "build:esm": "node scripts/build.js && cp src/index.d.ts dist/index.d.ts",
     "build": "yarn build:esm"
   },
   "dependencies": {

tsconfig.json

@@ -15,5 +15,5 @@
     "outDir": "dist",
     "rootDir": "src"
   },
-  "exclude": ["**/*.test.ts"]
+  "exclude": ["dist", "node_modules", "scripts"]
 }