Added preview feature configuration (#227)

app/MindWork AI Studio/Components/ConfigurationMultiSelect.razor

@@ -0,0 +1,23 @@
+@inherits ConfigurationBase
+@typeparam T
+
+<MudSelectExtended
+    T="T"
+    MultiSelection="@true"
+    MultiSelectionTextFunc="@this.GetMultiSelectionText"
+    SelectedValues="@this.SelectedValues()"
+    Strict="@true"
+    Disabled="@this.Disabled()"
+    Margin="Margin.Dense"
+    Label="@this.OptionDescription"
+    Class="@GetClass"
+    Variant="Variant.Outlined"
+    HelperText="@this.OptionHelp"
+    SelectedValuesChanged="@this.OptionChanged">
+        @foreach (var data in this.Data)
+        {
+            <MudSelectItemExtended Value="@data.Value">
+                @data.Name
+            </MudSelectItemExtended>
+        }
+</MudSelectExtended>