Fix colors, replace Dropdown with Select, add clear layout

app/components/ui/select/SelectGroup.vue

@@ -0,0 +1,15 @@
+<script setup lang="ts">
+import type { SelectGroupProps } from "reka-ui"
+import { SelectGroup } from "reka-ui"
+
+const props = defineProps<SelectGroupProps>()
+</script>
+
+<template>
+  <SelectGroup
+    data-slot="select-group"
+    v-bind="props"
+  >
+    <slot />
+  </SelectGroup>
+</template>