feat: 优化 all-custom-primevue.vue 表单布局，调整间距和样式

src/all-custom-primevue/all-custom-primevue.vue

@@ -4,9 +4,12 @@
     pt:content:class="flex justify-center"
   >
 
-    <form @submit.prevent="onFormSubmit">
+    <form
+      class="flex flex-col gap-4 w-full"
+      @submit.prevent="onFormSubmit"
+    >
 
-      <div class="flex flex-col gap-1">
+      <div class="flex flex-col gap-2">
         <label for="username">Username</label>
         <InputText
           id="username"
@@ -26,7 +29,7 @@
       <FormField
         name="FormField"
         initialValue="1"
-        class="flex flex-col gap-1"
+        class="flex flex-col gap-2"
       >
         <label
           for="password"