route breadcrumbs, improve sidebar, basic folder layout

components/ui/dropdown-menu/DropdownMenuRadioGroup.vue

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+<script setup lang="ts">
+import {
+  DropdownMenuRadioGroup,
+  type DropdownMenuRadioGroupEmits,
+  type DropdownMenuRadioGroupProps,
+  useForwardPropsEmits,
+} from 'reka-ui'
+
+const props = defineProps<DropdownMenuRadioGroupProps>()
+const emits = defineEmits<DropdownMenuRadioGroupEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <DropdownMenuRadioGroup
+    data-slot="dropdown-menu-radio-group"
+    v-bind="forwarded"
+  >
+    <slot />
+  </DropdownMenuRadioGroup>
+</template>