refactor: migrate demo applications to playground (#4116)

* chore: detail adjustment

* refactor: Migrate demo applications to playground

* perf: logic optimization

* chore: update docs

* chore: update docs

playground/src/views/_core/fallback/coming-soon.vue

@@ -0,0 +1,7 @@
+<script lang="ts" setup>
+import { Fallback } from '@vben/common-ui';
+</script>
+
+<template>
+  <Fallback status="coming-soon" />
+</template>

playground/src/views/_core/fallback/forbidden.vue

@@ -0,0 +1,9 @@
+<script lang="ts" setup>
+import { Fallback } from '@vben/common-ui';
+
+defineOptions({ name: 'Fallback403Demo' });
+</script>
+
+<template>
+  <Fallback status="403" />
+</template>

playground/src/views/_core/fallback/internal-error.vue

@@ -0,0 +1,9 @@
+<script lang="ts" setup>
+import { Fallback } from '@vben/common-ui';
+
+defineOptions({ name: 'Fallback500Demo' });
+</script>
+
+<template>
+  <Fallback status="500" />
+</template>

playground/src/views/_core/fallback/not-found.vue

@@ -0,0 +1,9 @@
+<script lang="ts" setup>
+import { Fallback } from '@vben/common-ui';
+
+defineOptions({ name: 'Fallback404Demo' });
+</script>
+
+<template>
+  <Fallback status="404" />
+</template>

playground/src/views/_core/fallback/offline.vue

@@ -0,0 +1,9 @@
+<script lang="ts" setup>
+import { Fallback } from '@vben/common-ui';
+
+defineOptions({ name: 'FallbackOfflineDemo' });
+</script>
+
+<template>
+  <Fallback status="offline" />
+</template>