improved structure

added store to control the popup
changed popup colors

src/store/index.js

@@ -0,0 +1,17 @@
+/**
+ * Internal dependencies
+ */
+import reducer from './reducer';
+import * as selectors from './selectors';
+import * as actions from './actions';
+
+/**
+ * WordPress dependencies
+ */
+import { registerStore } from '@wordpress/data';
+
+registerStore('mind/popup', {
+	reducer,
+	selectors,
+	actions,
+});