fix: remove get package, upgrade Flutter 3.44 compat deps

- Remove `get` package (incompatible with Flutter 3.44/Dart 3.12 due to
  removed ThemeData.backgroundColor and final IconData class)
- Replace GetMaterialApp → MaterialApp with GlobalKey navigatorKey
- Convert AuthenticationRepository and all 7 controllers from
  GetxController to plain singletons
- Replace Get.snackbar/offAll/to/back/defaultDialog with app_navigator
  helpers and native Flutter APIs
- Add ApiService.baseUrl static + parseJson method
- Add UserModel.getUser static method
- Add UserProvider.score via ScoresModel API
- Fix user?.photo → user?.picture in drawer_menu, service_after
- Fix logout(uid!) → logout() in drawer_menu
- Fix photo_view_web.dart missing dart:typed_data import
- Remove getCoordsOfCity call from ubicacion.dart
- Fix UserModel.getUser?.name null-safety in map/service.dart
- Upgrade: google_maps_flutter ^2.9.0, url_launcher ^6.3.0,
  font_awesome_flutter ^10.8.0, image_picker ^1.1.2

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/src/presentation/screens/profile/profile.dart

@@ -2,8 +2,8 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:get/get.dart';
 import 'dart:io';
+import 'package:prosappco/src/utils/app_navigator.dart';
 import 'package:http/http.dart' as http;
 import 'package:intl/intl.dart';
 import 'package:prosappco/src/authentication/authentication_repository.dart';
@@ -38,7 +38,7 @@ class _ProfileScreenState extends State<ProfileScreen> {
   final uid = AuthenticationRepository.instance.getCurrentUserUid();
   bool _obscureText = true;
   final _formKey = GlobalKey<FormState>();
-  final controller = Get.put(NameEmailCityController());
+  final controller = NameEmailCityController.instance;
   final _phoneNumberController = TextEditingController();
   final _nameController = TextEditingController();
   final _emailController = TextEditingController();
@@ -140,8 +140,7 @@ class _ProfileScreenState extends State<ProfileScreen> {
       );
     } catch (e) {
       print('Error updating info: $e');
-      Get.snackbar('Error', 'No se pudo actualizar la información.',
-          snackPosition: SnackPosition.BOTTOM);
+      showAppSnackBar('Error', 'No se pudo actualizar la información.');
     }
   }