install: shortend finish delay to 1,5 seconds

source/main.c

@@ -651,7 +651,7 @@ void ipl_main(void) {
     int result = perform_installation(pack_variant, mode);
     
     // Wait 3 seconds before clearing screen to allow errors to be visible
-    msleep(3000);
+    msleep(1500);
     // take_screenshot(); // Take a screenshot of the installation summary
 
     // Clear screen for final summary to ensure it's visible