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/project.json

@@ -34,6 +34,37 @@
         "jestConfig": "packages/core/jest.config.ts",
         "passWithNoTests": true
       }
+    },
+    "storybook": {
+      "executor": "@nrwl/storybook:storybook",
+      "options": {
+        "port": 4400,
+        "configDir": "packages/core/.storybook"
+      },
+      "configurations": {
+        "ci": {
+          "quiet": true
+        }
+      }
+    },
+    "build-storybook": {
+      "executor": "@nrwl/storybook:build",
+      "outputs": ["{options.outputDir}"],
+      "options": {
+        "outputDir": "dist/storybook/core",
+        "configDir": "packages/core/.storybook"
+      },
+      "configurations": {
+        "ci": {
+          "quiet": true
+        }
+      }
+    },
+    "test-storybook": {
+      "executor": "nx:run-commands",
+      "options": {
+        "command": "test-storybook -c packages/core/.storybook --url=http://localhost:4400"
+      }
     }
   }
 }