style: 移除 Websites.vue 中所有尾部多余空格

frontend/src/views/Websites.vue

@@ -308,7 +308,7 @@
               <span>可选分组列表 (已选 {{ tempSelectedKeys.filter(k => filteredGroupsForModal.some(g => g.key === k)).length }}/{{ filteredGroupsForModal.length }})</span>
             </el-checkbox>
           </div>
-          
+
           <div class="list-container group-list-scroll">
             <div v-if="upstreamGroupOptions.length === 0" class="empty-hint-dialog">
               暂无分组快照，请先同步上游
@@ -351,7 +351,7 @@
             <span>已选分组 ({{ tempSelectedKeys.length }})</span>
             <el-button v-if="tempSelectedKeys.length > 0" type="danger" size="small" link @click="clearAllTempKeys">清空</el-button>
           </div>
-          
+
           <div class="list-container selected-list-scroll">
             <div v-if="tempSelectedKeys.length === 0" class="empty-hint-dialog small">
               暂无选定分组
@@ -1987,14 +1987,14 @@ onMounted(loadAll)
     max-height: 480px;
     overflow-y: auto;
   }
-  
+
   .left-panel {
     border-right: none;
     border-bottom: 1px solid var(--border-color);
     max-height: 120px;
     height: auto;
   }
-  
+
   .left-panel .list-container {
     display: flex;
     flex-direction: row;
@@ -2002,16 +2002,16 @@ onMounted(loadAll)
     gap: 6px;
     padding: 8px;
   }
-  
+
   .left-panel .list-item {
     margin-bottom: 0;
     padding: 4px 10px;
   }
-  
+
   .middle-panel {
     max-height: 240px;
   }
-  
+
   .right-panel {
     border-left: none;
     border-top: 1px solid var(--border-color);