优化多个组件的样式：移除冗余的阴影效果，调整类名以提升视觉效果，更新样式以确保一致性。

src/@core/components/ExistIcon.vue

@@ -1,14 +1,13 @@
 <template>
   <div class="absolute top-0 right-0 flex items-center justify-between p-2">
     <div class="pointer-events-none z-40 flex items-center">
-      <div class="relative inline-flex whitespace-nowrap rounded-full border-gray-700 font-semibold leading-5 ring-gray-700">
-        <div class="rounded-full bg-opacity-80 shadow-md w-5 border p-0 bg-green-500 border-green-400 ring-green-400 text-green-100">
-          <svg
-            xmlns="http://www.w3.org/2000/svg"
-            viewBox="0 0 20 20"
-            fill="currentColor"
-            aria-hidden="true"
-          >
+      <div
+        class="relative inline-flex whitespace-nowrap rounded-full border-gray-700 font-semibold leading-5 ring-gray-700"
+      >
+        <div
+          class="rounded-full bg-opacity-80 w-5 border p-0 bg-green-500 border-green-400 ring-green-400 text-green-100"
+        >
+          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
             <path
               fill-rule="evenodd"
               d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.857-9.809a.75.75 0 00-1.214-.882l-3.483 4.79-1.88-1.88a.75.75 0 10-1.06 1.061l2.5 2.5a.75.75 0 001.137-.089l4-5.5z"

src/@core/components/StatIcon.vue

@@ -8,9 +8,9 @@ const props = defineProps<Props>()
 </script>
 
 <template>
-  <div class="absolute top-2 right-2 flex items-center justify-between p-2 shadow">
+  <div class="absolute top-2 right-2 flex items-center justify-between p-2">
     <VBadge :color="props.color" bordered>
-      <template #badge>          
+      <template #badge>
         <VIcon icon="mdi-pulse"></VIcon>
       </template>
     </VBadge>