feat(Tab): trim value/text (#5701)

* refactor: 移除空格

* doc: 更正示例

Author: ArgoZhang

src/BootstrapBlazor.Server/Components/Samples/MultiSelects.razor.cs

@@ -148,7 +148,7 @@ private async Task<QueryData<SelectedItem>> OnQueryAsync(VirtualizeQueryOption o
         }
         return new QueryData<SelectedItem>
         {
-            Items = items.Skip(option.StartIndex).Take(option.Count).Select(i => new SelectedItem(i.Name!, i.Name!)),
+            Items = items.Skip(option.StartIndex).Take(option.Count).Select(i => new SelectedItem(i.Id.ToString(), i.Name!)),
             TotalCount = items.Count
         };
     }

src/BootstrapBlazor/Components/Select/MultiSelect.razor.cs

@@ -251,7 +251,7 @@ private List<SelectedItem> GetItemsByVirtualize()
         for (int i = 0; i < values.Count; i++)
         {
             var text = i < texts.Count ? texts[i] : values[i];
-            ret.Add(new SelectedItem(values[i], text));
+            ret.Add(new SelectedItem(values[i].Trim(), text.Trim()));
         }
         return ret;
     }