Initial commit of Doormile CRM Mobile with UI modernizations

test/widget_test.dart

@@ -0,0 +1,9 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:doormile_flutter/main.dart';
+
+void main() {
+  testWidgets('App smoke test', (WidgetTester tester) async {
+    await tester.pumpWidget(const DoorMileApp());
+    expect(find.text('Doormile CRM'), findsWidgets);
+  });
+}