Added PowerPoint templates to the Slide Assistant (#1055)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Tools/PowerPoint/TemplateSlideElementKindExtensions.cs

@@ -0,0 +1,21 @@
+namespace AIStudio.Tools.PowerPoint;
+
+internal static class TemplateSlideElementKindExtensions
+{
+    /// <summary>
+    /// How the kind is called in the list of template slides the model reads.
+    /// </summary>
+    public static string CatalogName(this TemplateSlideElementKind kind) => kind switch
+    {
+        TemplateSlideElementKind.TEXT_BOX => "text box",
+        TemplateSlideElementKind.SHAPE => "shape",
+        TemplateSlideElementKind.LINE => "line",
+        TemplateSlideElementKind.PICTURE => "picture",
+        TemplateSlideElementKind.TABLE => "table",
+        TemplateSlideElementKind.CHART => "chart",
+        TemplateSlideElementKind.DIAGRAM => "diagram",
+        TemplateSlideElementKind.GROUP => "group",
+
+        _ => "object",
+    };
+}