fix(components): improve generic types (#3331)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

docs/app/components/content/examples/select/SelectItemsChipExample.vue

@@ -1,27 +1,30 @@
 <script setup lang="ts">
+import type { SelectItem, ChipProps } from '@nuxt/ui'
+
 const items = ref([
   {
     label: 'bug',
     value: 'bug',
     chip: {
-      color: 'error' as const
+      color: 'error'
     }
   },
   {
     label: 'feature',
     value: 'feature',
     chip: {
-      color: 'success' as const
+      color: 'success'
     }
   },
   {
     label: 'enhancement',
     value: 'enhancement',
     chip: {
-      color: 'info' as const
+      color: 'info'
     }
   }
-])
+] satisfies SelectItem[])
+
 const value = ref(items.value[0]?.value)
 
 function getChip(value: string) {
@@ -30,14 +33,14 @@ function getChip(value: string) {
 </script>
 
 <template>
-  <USelect v-model="value" :items="items" class="w-48">
+  <USelect v-model="value" :items="items" value-key="value" class="w-48">
     <template #leading="{ modelValue, ui }">
       <UChip
         v-if="modelValue"
-        v-bind="getChip(modelValue as string)"
+        v-bind="getChip(modelValue)"
         inset
         standalone
-        :size="ui.itemLeadingChipSize()"
+        :size="(ui.itemLeadingChipSize() as ChipProps['size'])"
         :class="ui.itemLeadingChip()"
       />
     </template>