Moved all extension methods into extension blocks (#1155)

app/MindWork AI Studio/Assistants/SlideBuilder/TemplateSlideExtensions.cs

@@ -11,20 +11,23 @@ internal static class TemplateSlideExtensions
     /// </summary>
     private const int MAX_SLIDE_TITLE_CHARACTERS = 60;
 
-    /// <summary>
-    /// How the forms name a slide of the template: by its number and its title, and what is special about it.
-    /// </summary>
-    /// <remarks>
-    /// The title tells the slides apart at a glance, since a template rarely gives its slides more
-    /// than a title. A long one is cut, so that the label stays on one line.
-    /// </remarks>
-    public static string Label(this TemplateSlide slide)
+    extension(TemplateSlide slide)
     {
-        var title = slide.Title.Length > MAX_SLIDE_TITLE_CHARACTERS ? $"{slide.Title[..MAX_SLIDE_TITLE_CHARACTERS].TrimEnd()}…" : slide.Title;
-        var label = title.Length > 0 ? string.Format(TB("Slide {0}: {1}"), slide.Number, title) : string.Format(TB("Slide {0}"), slide.Number);
-        if (slide.IsHidden)
-            label = $"{label} ({TB("hidden")})";
+        /// <summary>
+        /// How the forms name a slide of the template: by its number and its title, and what is special about it.
+        /// </summary>
+        /// <remarks>
+        /// The title tells the slides apart at a glance, since a template rarely gives its slides more
+        /// than a title. A long one is cut, so that the label stays on one line.
+        /// </remarks>
+        public string Label()
+        {
+            var title = slide.Title.Length > MAX_SLIDE_TITLE_CHARACTERS ? $"{slide.Title[..MAX_SLIDE_TITLE_CHARACTERS].TrimEnd()}…" : slide.Title;
+            var label = title.Length > 0 ? string.Format(TB("Slide {0}: {1}"), slide.Number, title) : string.Format(TB("Slide {0}"), slide.Number);
+            if (slide.IsHidden)
+                label = $"{label} ({TB("hidden")})";
 
-        return label;
+            return label;
+        }
     }
 }