[/][m]: add storybook to core package

packages/core/.storybook/main.ts

@@ -0,0 +1,20 @@
+import type { StorybookConfig } from '@storybook/react-webpack5';
+
+const config: StorybookConfig = {
+  stories: ['../src/**/*.stories.@(js|jsx|ts|tsx|mdx)'],
+  addons: [
+    '@storybook/addon-essentials',
+    '@storybook/addon-interactions',
+    '@nx/react/plugins/storybook',
+  ],
+  framework: {
+    name: '@storybook/react-webpack5',
+    options: {},
+  },
+};
+
+export default config;
+
+// To customize your webpack configuration you can use the webpackFinal field.
+// Check https://storybook.js.org/docs/react/builders/webpack#extending-storybooks-webpack-config
+// and https://nx.dev/packages/storybook/documents/custom-builder-configs