refactor: make stepper responsive (#1144)

This PR adds a responsive layout for the Stepper component on small
screens. There's a vertical orientation version but the changes here
won't be compatible. If we need a verticle version we can just create a
separate component folder for the vertical only version.

<img width="171" alt="image"
src="https://github.com/user-attachments/assets/4e38ac68-ca17-400a-b07b-2bfcb2c0a192"
/>

 
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

## Summary by CodeRabbit

- **Style**
- Enhanced the visual design of the stepper components with improved
responsive layouts—displaying vertically on smaller screens and
horizontally on medium and larger screens.
- **New Features**
- Added an interactive demo showcasing the stepper workflow in
Storybook.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: mdatelle <mike@datelle.net>

Author: mdatelle

unraid-ui/src/components/common/stepper/Stepper.vue

@@ -17,7 +17,11 @@ const forwarded = useForwardPropsEmits(delegatedProps, emits);
 </script>
 
 <template>
-  <StepperRoot v-slot="slotProps" :class="cn('flex gap-2', props.class)" v-bind="forwarded">
+  <StepperRoot
+    v-slot="slotProps"
+    :class="cn('flex flex-col gap-2 md:flex-row', props.class)"
+    v-bind="forwarded"
+  >
     <slot v-bind="slotProps" />
   </StepperRoot>
 </template>

unraid-ui/src/components/common/stepper/StepperItem.vue

@@ -19,7 +19,15 @@ const forwarded = useForwardProps(delegatedProps);
   <StepperItem
     v-slot="slotProps"
     v-bind="forwarded"
-    :class="cn('flex items-center gap-2 group data-[disabled]:pointer-events-none', props.class)"
+    :class="
+      cn(
+        'flex flex-col items-start gap-1',
+        'md:flex-row md:items-center md:gap-2',
+        'group transition-all duration-200',
+        'data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+        props.class
+      )
+    "
   >
     <slot v-bind="slotProps" />
   </StepperItem>

unraid-ui/src/components/common/stepper/StepperSeparator.vue

@@ -20,7 +20,7 @@ const forwarded = useForwardProps(delegatedProps);
     v-bind="forwarded"
     :class="
       cn(
-        'bg-muted',
+        'hidden md:block bg-muted md:w-24 md:h-px md:my-0',
         // Disabled
         'group-data-[disabled]:bg-muted group-data-[disabled]:opacity-75',
         // Completed

unraid-ui/src/components/common/stepper/StepperTrigger.vue

@@ -18,7 +18,12 @@ const forwarded = useForwardProps(delegatedProps);
 <template>
   <StepperTrigger
     v-bind="forwarded"
-    :class="cn('p-2 flex flex-col items-center text-center gap-2 rounded-md', props.class)"
+    :class="
+      cn(
+        'flex flex-col items-center justify-center text-center gap-2 rounded-md w-full md:w-auto',
+        props.class
+      )
+    "
   >
     <slot />
   </StepperTrigger>

unraid-ui/stories/components/common/Stepper.stories.ts

@@ -0,0 +1,71 @@
+import type { Meta, StoryObj } from '@storybook/vue3';
+import {
+  Stepper as StepperComponent,
+  StepperDescription,
+  StepperIndicator,
+  StepperItem,
+  StepperSeparator,
+  StepperTitle,
+  StepperTrigger,
+} from '../../../src/components/common/stepper';
+
+const meta = {
+  title: 'Components/Common',
+  component: StepperComponent,
+  parameters: {
+    layout: 'padded',
+    viewport: {
+      defaultViewport: 'responsive',
+      viewports: {
+        responsive: {
+          name: 'Responsive',
+          styles: { width: '100%', height: '100%' },
+        },
+        mobile: {
+          name: 'Mobile',
+          styles: { width: '320px', height: '100%' },
+        },
+      },
+    },
+  },
+} satisfies Meta<typeof StepperComponent>;
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+export const Stepper: Story = {
+  render: () => ({
+    components: {
+      StepperComponent,
+      StepperItem,
+      StepperTitle,
+      StepperDescription,
+      StepperIndicator,
+      StepperSeparator,
+      StepperTrigger,
+    },
+    template: `
+      <StepperComponent>
+        <template v-for="(step, index) in steps" :key="index">
+          <StepperItem :step="index + 1">
+            <StepperTrigger>
+              <StepperIndicator>{{ index + 1 }}</StepperIndicator>
+              <StepperTitle>{{ step.title }}</StepperTitle>
+              <StepperDescription>{{ step.description }}</StepperDescription>
+            </StepperTrigger>
+            <StepperSeparator v-if="index < steps.length - 1" />
+          </StepperItem>
+        </template>
+      </StepperComponent>
+    `,
+    setup() {
+      const steps = [
+        { title: 'Account Setup', description: 'Create your account' },
+        { title: 'Server Details', description: 'Configure your server' },
+        { title: 'Review', description: 'Review and confirm' },
+      ];
+      return { steps };
+    },
+  }),
+};