Change exports. (main: UMD/ES2017, module: ESM/ES2017)

Author: lgarron

package.json

@@ -6,6 +6,7 @@
   "license": "MIT",
   "repository": "github:github/webauthn-json",
   "main": "dist/index.js",
+  "module": "dist/index.esm.js",
   "umd": "dist/webauthn-json.umd.js",
   "types": "dist/src/index.d.ts",
   "dependencies": {
@@ -31,8 +32,8 @@
     "print-schemas": "npx ts-node script/print-schemas.ts",
     "lint": "tslint --fix --project . && tslint --fix rollup.config.js",
     "prepack": "npm run clean && npm run build",
-    "copy-flow": "mkdir -p dist/ && rm -f dist/index.js.flow && cp src/index.js.flow dist/",
-    "link-flow": "mkdir -p dist/ && rm -f dist/index.js.flow && ln -s src/index.js.flow dist/"
+    "copy-flow": "mkdir -p dist/ && rm -f dist/index.js.flow dist/index.esm.js.flow && cp    src/index.js.flow dist/ && cp    src/index.js.flow dist/index.esm.js.flow",
+    "link-flow": "mkdir -p dist/ && rm -f dist/index.js.flow dist/index.esm.js.flow && ln -s src/index.js.flow dist/ && ln -s src/index.js.flow dist/index.esm.js.flow"
   },
   "keywords": [
     "webauthn",

rollup.config.js

@@ -9,13 +9,13 @@ export default {
   output: [
     {
       file: pkg.main,
-      format: "cjs",
+      format: "umd",
+      name: "webauthnJSON",
       sourcemap: true,
     },
     {
-      file: pkg.umd,
-      format: "umd",
-      name: "webauthnJSON",
+      file: pkg.module,
+      format: "esm",
       sourcemap: true,
     },
   ],

tsconfig.json

@@ -12,7 +12,7 @@
     "outDir": "dist",
     "sourceMap": true,
     "strictNullChecks": true,
-    "target": "es6"
+    "target": "es2017"
   },
   "include": [
     "src/**/*",