feat: 调整禁用样式

Author: ArgoZhang

src/BootstrapBlazor/Components/Upload/DropUpload.razor

@@ -23,7 +23,7 @@
                     <i class="@UploadIcon"></i>
                 }
             </div>
-            <div class="upload-drop-text">
+            <div class="@TextClassString">
                 @if (TextTemplate != null)
                 {
                     @TextTemplate

src/BootstrapBlazor/Components/Upload/DropUpload.razor.cs

@@ -77,6 +77,11 @@ public partial class DropUpload
 
     private string? BodyClassString => CssBuilder.Default("upload-drop-body")
         .AddClass("btn-browser", !IsDisabled)
+        .AddClass("disabled", IsDisabled)
+        .Build();
+
+    private string? TextClassString => CssBuilder.Default("upload-drop-text")
+        .AddClass("text-muted", IsDisabled)
         .Build();
 
     /// <summary>

src/BootstrapBlazor/Components/Upload/InputUpload.razor.scss

@@ -310,6 +310,10 @@
         height: var(--bb-upload-drop-height);
         cursor: pointer;
 
+        &.disabled {
+            border-color: var(--bs-border-color);
+        }
+
         .upload-drop-icon > i {
             font-size: 3em;
             color: var(--bs-secondary);