Revert unintended imgui submodule change

revmischa · claude · revmischa · commit b4ca62b0522b · 2026-01-17T19:55:05.000-08:00
Co-Authored-By: Claude Opus 4.5 &lt;noreply@anthropic.com&gt;
diff --git a/vendor/imgui b/vendor/imgui
@@ -1 +1 @@
-Subproject commit d6cb3c923d28dcebb2d8d9605ccc7229ccef19eb
+Subproject commit 45acd5e0e82f4c954432533ae9985ff0e1aad6d5
