fix: hide toolbar on storybook welcome doc page

Author: cylewaitforit

.storybook/manager.ts

@@ -4,4 +4,16 @@ import npmxDark from './theme'
 
 addons.setConfig({
   theme: npmxDark,
+  layoutCustomisations: {
+    showToolbar: (state, defaultValue) => {
+      if (state.viewMode === 'docs' && state.storyId) {
+        const story = state.index?.[state.storyId]
+        const tags = story?.tags || []
+        if (tags.includes('hide-toolbar')) {
+          return false
+        }
+      }
+      return defaultValue
+    },
+  },
 })

.storybook/storybook-welcome.mdx

@@ -1,6 +1,6 @@
 import { Meta } from '@storybook/addon-docs/blocks';
 
-<Meta title="Welcome" />
+<Meta title="Welcome" tags={['hide-toolbar']}/>
 
 # Welcome