change UMD name to StimulusFlatpickr (#64)

* change UMD name to StimulusFlatpickr

* fix typo

Author: adrienpoly

dist/index.umd.js

@@ -11,6 +11,7 @@
   "umd:main": "dist/index.umd.js",
   "module": "dist/index.m.js",
   "source": "src/index.js",
+  "amdName": "StimulusFlatpickr",
   "author": "@adrienpoly",
   "license": "MIT",
   "external": "stimulus, flatpickr",

package.json

@@ -4,8 +4,6 @@ import babel from 'rollup-plugin-babel'
 
 const pkg = require('./package.json')
 
-const name = pkg.name
-
 export default {
   input: 'src/index.js',
   external: ['stimulus', 'flatpickr'],
@@ -23,7 +21,7 @@ export default {
     {
       file: 'dist/index.umd.js',
       format: 'umd',
-      name,
+      name: pkg.amdName,
       sourcemap: true,
       globals: {
         stimulus: 'Stimulus',