fixed selected items bug

Author: neozhu

src/Server.UI/Pages/Contacts/Contacts.razor

@@ -28,7 +28,6 @@
                   SelectOnRowClick="false"
                   RowClick="@(s=>OnView(s.Item))"
                   @bind-SelectedItems="_selectedItems"
-                  @bind-SelectedItem="_currentDto"
                   Hover="true" @ref="_table">
             <ToolBarContent>
                  <MudStack Row Spacing="0" Class="flex-grow-1" Justify="Justify.SpaceBetween">

src/Server.UI/Pages/Documents/Documents.razor

@@ -20,10 +20,9 @@
 
 <MudDataGrid ServerData="@(new Func<GridState<DocumentDto>, Task<GridData<DocumentDto>>>(ServerReload))"
              FixedHeader="true"
-             FixedFooter="false"
+             FixedFooter="true"
              Virtualize="false"
              @bind-RowsPerPage="_defaultPageSize"
-             Height="calc(100vh - 300px)"
              Loading="@_loading"
              MultiSelection="true"
              @bind-SelectedItems="_selectedItems"

src/Server.UI/Pages/PicklistSets/PicklistSets.razor

@@ -22,7 +22,6 @@
              Hover="true"
              MultiSelection="true"
              @bind-SelectedItems="_selectedItems"
-             @bind-SelectedItem="SelectedItem"
              ReadOnly="false"
              EditMode="DataGridEditMode.Cell"
              T="PicklistSetDto"

src/Server.UI/Pages/Products/Products.razor

@@ -25,7 +25,6 @@
              Loading="@_loading"
              MultiSelection="true"
              @bind-SelectedItems="_selectedItems"
-             @bind-SelectedItem="_currentDto"
              ColumnResizeMode="ResizeMode.Column"
              Hover="true" @ref="_table">
     <ToolBarContent>

src/Server.UI/Pages/Tenants/Tenants.razor

@@ -18,7 +18,6 @@
              @bind-RowsPerPage="_defaultPageSize"
              MultiSelection="true"
              @bind-SelectedItems="_selectedItems"
-             @bind-SelectedItem="_currentDto"
              Hover="true" @ref="_table">
     <ToolBarContent>
          <MudStack Row Spacing="0" Class="flex-grow-1" Justify="Justify.SpaceBetween">

src/Server.UI/Themes/Theme.cs

@@ -26,7 +26,7 @@ public static MudTheme ApplicationTheme()
                 Surface = "#ffffff", 
                 DrawerBackground = "#ffffff",
                 TextPrimary = "#000000", 
-                TextSecondary = "#111", 
+                TextSecondary = "#333333", 
                 SecondaryContrastText = "#F5F5F5", 
                 TextDisabled = "#B0B0B0", 
                 ActionDefault = "#80838b",