fix(zaparoo): let UI loop run during alt launcher so notices clear

The `!alt_launcher_active()` gate around HandleUI/OsdUpdate stopped the
MENU_INFO timer from ever expiring while the launcher was up, so the
resolution-change overlay and unknown-INI-key warning stuck on screen
permanently. The gate's CPU win was negligible (the coroutine yields
each iteration anyway) and MENU/F12 are already intercepted upstream,
so just drop it.

Author: wizzomafizzo

scheduler.cpp

@@ -47,11 +47,8 @@ static void scheduler_co_ui(void)
 	{
 		{
 			SPIKE_SCOPE("co_ui", 1000);
-			if (!alt_launcher_active())
-			{
-				HandleUI();
-				OsdUpdate();
-			}
+			HandleUI();
+			OsdUpdate();
 		}
 
 		scheduler_yield();