feat: 更新 PrimeVue 组件，添加城市选择下拉框并优化按钮布局

src/components/primevue.vue

@@ -1,8 +1,20 @@
 <template>
   <div class="pppppppp">
     <InputText />
-    <button>button</button>
-    <Button>Button</Button>
-    <PButton>PButton</PButton>
+
+    <Button>PButton</Button>
+
+    <Select
+      :options="[
+        { name: 'New York', code: 'NY' },
+        { name: 'Rome', code: 'RM' },
+        { name: 'London', code: 'LDN' },
+        { name: 'Istanbul', code: 'IST' },
+        { name: 'Paris', code: 'PRS' },
+      ]"
+      optionLabel="name"
+      placeholder="Select a City"
+      class="min-w-[200px]"
+    />
   </div>
 </template>