fix: linux dependency issues

lib/database/pokedex_database.dart

@@ -1,4 +1,4 @@
-import 'package:sqflite/sqflite.dart';
+import 'package:sqflite_common/sqflite.dart';
 import '../models/pokemon.dart';
 
 // Permet de gérer la base de données

lib/main.dart

@@ -1,8 +1,16 @@
+import 'dart:io';
 import 'package:flutter/material.dart';
 import 'pages/pokemon_list.dart';
 import 'pages/pokemon_detail.dart';
+import 'package:sqflite_common/sqflite.dart';
+import 'package:sqflite_common_ffi/sqflite_ffi.dart';
 
 void main() {
+  WidgetsFlutterBinding.ensureInitialized();
+  if (Platform.isLinux || Platform.isWindows || Platform.isMacOS) {
+    sqfliteFfiInit();
+    databaseFactory = databaseFactoryFfi;
+  }
   runApp(const MyApp());
 }