style: 更新变量

Co-Authored-By: Alex chow <[email protected]>

Author: ArgoZhang

src/BootstrapBlazor.Server/wwwroot/css/site.css

@@ -45,7 +45,7 @@
 
 html .search-dialog-mask {
     --bb-global-search-placeholder-color: #a88dbc;
-    --bb-global-search-item-bg: #6522cc;
+    --bb-global-search-footer-kbd-bg: #6522cc;
     --bb-global-search-item-active-bg: rgba(var(--bb-primary-color-rgb), 0.5);
     --bb-global-search-item-hover-bg: rgba(var(--bb-primary-color-rgb), 0.4);
     --bb-global-search-dialog-input-focus-border-color: var(--bb-primary-color);