Move .d.ts to the dist folder

Author: xt0rted

package.json

@@ -5,14 +5,14 @@
   "repository": "github/query-selector",
   "main": "dist/index.umd.js",
   "module": "dist/index.esm.js",
-  "types": "index.d.ts",
+  "types": "dist/index.d.ts",
   "scripts": {
     "clean": "rm -rf dist",
     "lint": "eslint index.js test/ && flow check",
     "prebuild": "npm run clean && npm run lint && mkdir dist",
     "build-umd": "BABEL_ENV=umd babel index.js -o dist/index.umd.js && cp index.js.flow dist/index.umd.js.flow",
     "build-esm": "BABEL_ENV=esm babel index.js -o dist/index.esm.js && cp index.js.flow dist/index.esm.js.flow",
-    "build": "npm run build-umd && npm run build-esm",
+    "build": "npm run build-umd && npm run build-esm && cp index.d.ts dist/index.d.ts",
     "test": "BABEL_ENV=umd mocha --require @babel/register",
     "prepublishOnly": "npm run build"
   },
@@ -22,8 +22,7 @@
   ],
   "license": "MIT",
   "files": [
-    "dist",
-    "index.d.ts"
+    "dist"
   ],
   "devDependencies": {
     "@babel/cli": "^7.0.0",