Code restructure (#1)

build/webpack.mix.js

@@ -0,0 +1,14 @@
+const { mix } = require('laravel-mix');
+
+const inProduction = mix.inProduction();
+
+mix
+	.setPublicPath('dist')
+	.js('src/index.js', 'vue-context.js')
+	.sourceMaps(! inProduction)
+	.webpackConfig({
+		output: {
+			libraryTarget: 'umd',
+			umdNamedDefine: true
+		}
+	});