大幅変更＆環境バージョンアップ

lib/widgets/bottom_sheet_controller.dart

@@ -1,11 +1,8 @@
-
-
-import 'package:geojson/geojson.dart';
+import 'package:geojson_vi/geojson_vi.dart';
 import 'package:get/get_state_manager/get_state_manager.dart';
 
-class BottomSheetController extends GetxController{
-
-  List<GeoJsonFeature>? currentFeature = <GeoJsonFeature>[];
+class BottomSheetController extends GetxController {
+  List<GeoJSONFeature>? currentFeature = <GeoJSONFeature>[];
 
   BottomSheetController({this.currentFeature});
-}
+}