KAt-50: Correted import in main.dart from triage_step1/ambulatory.dart to...

KAt-50: Correted import in main.dart from triage_step1/ambulatory.dart to start_triage_system/ambulatory.dart

rescueapp/lib/main.dart

 import 'package:flutter/material.dart';
-import 'triage_step1/ambulatory.dart';
+import 'start_triage_system/ambulatory.dart';
 
 void main() {
   runApp(MyApp());