Normalize Comment Terminology

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

UI/Window/RenderConfigWindow.cs

@@ -24,7 +24,7 @@ namespace ADOFAIRenderer.UI.Window;
 /// <para>
 /// Opened from the level editor through <c>RenderManager</c> (after the unsaved-changes check) with
 /// <see cref="CreateWindow"/>. The window is built once and then hidden/shown; its state lives in static fields for the
-/// whole game session. All members run on the Unity main thread.
+/// whole game session. All members run on the main Unity thread.
 /// </para>
 /// <para>
 /// Data flow:
@@ -658,7 +658,7 @@ internal static class RenderConfigWindow
         var (globalLeft, globalRight) = CreateTwoColumnPanel(globalContent);
         // Browse: opens the OS folder picker (FolderDialogUtil) at the current folder; a selected folder is written to
         // the input and saved to the global settings immediately. FolderDialogUtil runs the callback through the
-        // caller's SynchronizationContext, i.e. on the Unity main thread; cancel or failure passes null (ignored here).
+        // caller's SynchronizationContext, i.e. on the main Unity thread; cancel or failure passes null (ignored here).
         CreateButton(
             ctx, globalLeft,
             "ui.render_config.browse",