Core package storybook setup (#1003)

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

* [/][s]: replace nx with nrwl packages for storybook

* [core][xs]: mv tsconfig.storybook.json to .storybook/tsconfig.json

* [/][s]: configure storybook with tailwind

* [core/tailwind.config.js][xs]: add basic Flowershow tailwind config

* [core][xs]: add example story

* [core][s]: darkmode storybook addon

packages/core/.storybook/preview.ts

@@ -0,0 +1,14 @@
+import './tailwind-imports.css';
+
+const preview = {
+    globalTypes: {
+        darkMode: {
+            defaultValue: false, // Enable dark mode by default on all stories
+        },
+        className: {
+            defaultValue: 'dark', // Set your custom dark mode class name
+        },
+    },
+};
+
+export default preview;