Added PowerPoint templates to the Slide Assistant (#1055)

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

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

@@ -0,0 +1,26 @@
+namespace AIStudio.Tools.PowerPoint;
+
+/// <summary>
+/// What the user reads about an area of kinds of slides.
+/// </summary>
+internal static class LayoutPurposeAreaExtensions
+{
+    private static string TB(string fallbackEN) => PluginSystem.I18N.I.T(fallbackEN, typeof(LayoutPurposeAreaExtensions).Namespace, nameof(LayoutPurposeAreaExtensions));
+
+    /// <summary>
+    /// The name of the area, as the forms show it above its kinds of slides.
+    /// </summary>
+    /// <param name="area">The area.</param>
+    public static string Label(this LayoutPurposeArea area) => area switch
+    {
+        LayoutPurposeArea.FRAMING => TB("Structure and framing"),
+        LayoutPurposeArea.GENERAL => TB("General content"),
+        LayoutPurposeArea.TEACHING => TB("Teaching and workshops"),
+        LayoutPurposeArea.BUSINESS => TB("Business and projects"),
+        LayoutPurposeArea.SCIENCE => TB("Science and research"),
+        LayoutPurposeArea.MEDICINE => TB("Medicine"),
+        LayoutPurposeArea.LAW => TB("Law"),
+
+        _ => TB("Other kinds of slides"),
+    };
+}