style: 移除边框样式

Author: ArgoZhang

src/components/BootstrapBlazor.DockView/wwwroot/css/dockview-bb.css

@@ -27,10 +27,6 @@
         --dv-tabs-and-actions-container-font-size: 12px;
     }
 
-    .bb-dockview .dv-resize-container {
-        border: 1px solid var(--bs-border-color);
-    }
-
     .bb-dockview .bb-dockview-panel {
         height: 100%;
         width: 100%;
@@ -283,4 +279,4 @@
 
 .bb-dockview .bb-overflowHidden {
     overflow: hidden;
-}
+}