fix: resolve menu item wrapping issue (#12346)

Author: ssongliu

frontend/src/layout/components/Sidebar/index.scss

@@ -9,7 +9,6 @@
         background-color: var(--el-menu-item-bg-color);
         margin: 7px 0;
         height: 42px;
-        line-height: 42px;
         box-shadow: 0px 0px 4px rgba(0, 94, 235, 0.1);
         box-sizing: border-box;
 
@@ -54,7 +53,6 @@
             box-shadow: 0 0 4px rgba(0, 94, 235, 0.1);
             margin-top: 7px;
             height: 42px;
-            line-height: 42px;
             border-radius: 4px;
             &:hover {
                 .el-icon {