refactor core providers

app/lib/core/providers/global_drop.dart

@@ -0,0 +1,21 @@
+import 'package:lensai/data/models/drag_data.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'global_drop.g.dart';
+
+@Riverpod()
+class WillAcceptDrop extends _$WillAcceptDrop {
+  // ignore: use_setters_to_change_properties api decision
+  void setData(DropTargetData data) {
+    state = data;
+  }
+
+  void clear() {
+    state = null;
+  }
+
+  @override
+  DropTargetData? build() {
+    return null;
+  }
+}