begin cleanup add_cam_main. dont remember if anything more

lib/screens/sharedMethods/save_file.dart

@@ -0,0 +1,21 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:file_picker/file_picker.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+Future<void> saveFile(
+    Map place, String fileNameLocalization, String placeID) async {
+  String? selectedDirectory = await FilePicker.platform.getDirectoryPath();
+  SharedPreferences prefs = await SharedPreferences.getInstance();
+  String jsonPlace = jsonEncode(place);
+
+  if (selectedDirectory == null) {
+    return;
+  }
+  await prefs.setString('saveDir', selectedDirectory);
+
+  File file = File('$selectedDirectory/$fileNameLocalization-$placeID.txt');
+
+  await file.writeAsString(jsonPlace);
+}