Fix type errors and build steps

package.json

@@ -2,28 +2,29 @@
   "name": "@extend-chrome/menus",
   "version": "0.0.1",
   "description": "A powerful and flexible alternative to `chrome.contextMenus` for Chrome extension development",
+  "repository": "github:extend-chrome/menus",
   "license": "MIT",
   "author": "Jack and Amy Steam <jacksteamdev@gmail.com>",
+  "main": "lib/index-cjs.js",
+  "module": "lib/index-esm.js",
+  "types": "types/index.d.ts",
   "files": [
     "lib",
     "types"
   ],
-  "main": "lib/index-cjs.js",
-  "module": "lib/index-esm.js",
-  "types": "types/index.d.ts",
-  "repository": "github:extend-chrome/menus",
   "scripts": {
-    "build": "run-p build:dev",
+    "build": "run-p build:pro build:types build:copy",
+    "build:copy": "copyfiles -u 1 src/*.d.ts types",
     "build:dev": "rollup -c --environment NODE_ENV:development",
     "build:pro": "rollup -c --environment NODE_ENV:production",
     "build:types": "tsc -p tsconfig.d.json",
     "build:types:watch": "tsc -w -p tsconfig.d.json",
     "build:watch": "npm run build:dev -- -w",
+    "prepublishOnly": "npm run build",
     "start": "run-p build:watch",
     "test": "jest",
     "test:e2e": "jest e2e",
-    "test:quick": "jest --testPathIgnorePatterns=e2e",
-    "prepublishOnly": "run-s build:pro build:types"
+    "test:quick": "jest --testPathIgnorePatterns=e2e"
   },
   "dependencies": {
     "@extend-chrome/events-rxjs": "^0.12.1",
@@ -34,6 +35,7 @@
     "@types/jest": "^24.0.19",
     "@types/node": "^12.11.5",
     "chrome-promise": "^3.0.5",
+    "copyfiles": "^2.3.0",
     "delay": "^4.3.0",
     "eslint": "^6.5.1",
     "husky": "^3.0.9",