优化对话框和消息视图组件：调整消息对话框最大宽度，增加全屏支持，更新消息内容引用，修改消息项的样式，提升用户体验

src/views/system/MessageView.vue

@@ -117,7 +117,7 @@ onBeforeUnmount(() => {
       <div
         v-for="(msg, index) in messages"
         :key="index"
-        class="chat-group d-flex mb-8"
+        class="chat-group d-flex mt-5 mb-8"
         :class="msg.action == 1 ? 'flex-row align-start' : 'flex-row-reverse align-end'"
       >
         <div class="d-inline-flex flex-column" :class="msg.action == 1 ? 'align-start' : 'align-end'">

src/views/system/NetTestView.vue

@@ -199,7 +199,7 @@ onMounted(async () => {
 </script>
 
 <template>
-  <VList lines="two" border rounded>
+  <VList lines="two" rounded>
     <template v-for="(target, index) of targets" :key="target.name">
       <VListItem>
         <template #prepend>
@@ -219,7 +219,7 @@ onMounted(async () => {
           <VBtn size="small" icon="mdi-connection" :disabled="target.btndisable" @click="netTest(index)" />
         </template>
       </VListItem>
-      <VDivider v-if="index !== targets.length - 1" />
+      <VDivider inset v-if="index !== targets.length - 1" />
     </template>
   </VList>
 </template>