D1APP-38 radar search bug fixed

lib/pages/home/radar/radar.dart

@@ -125,11 +125,12 @@ class _RadarState extends State<Radar> {
   }
 
   void _onChanged(String value) {
-    context.read<RadarState>().resetFilters();
+    final state = context.read<RadarState>();
+    state.resetFilters(shoudUpdate: false);
     if (value.length < 4 && value.isNotEmpty) return;
     _timer?.cancel();
     _timer = Timer(const Duration(seconds: 2), () {
-      context.read<RadarState>().getRadarOverviews(
+      state.getRadarOverviews(
         page: 1,
         search: value,
       );

lib/pages/home/radar/radar_state.dart

@@ -8,19 +8,21 @@ import 'package:didvan/services/network/request_helper.dart';
 
 class RadarState extends CoreProvier {
   bool isFiltering = false;
-  String? _lastSearch;
+  String? lastSearch;
   String? startDate;
   String? endDate;
   final List<RadarCategory> selectedCats = [];
 
   final List<RadarOverview> radars = [];
 
-  void resetFilters() {
+  void resetFilters({bool shoudUpdate = true}) {
     startDate = null;
     endDate = null;
     selectedCats.clear();
+    if (shoudUpdate) {
       getRadarOverviews(page: 1);
     }
+  }
 
   Future<void> getRadarOverviews({
     required int page,
@@ -28,17 +30,14 @@ class RadarState extends CoreProvier {
     bool filter = false,
   }) async {
     if (search != null && search.isNotEmpty) {
-      if (_lastSearch == search && !filter) {
+      if (lastSearch == search && !filter) {
         return;
       }
       isFiltering = true;
-      _lastSearch = search;
+      lastSearch = search;
     } else {
       isFiltering = false;
     }
-    if (filter) {
-      isFiltering = true;
-    }
     appState = AppState.busy;
     final RequestService service = RequestService(
       RequestHelper.getRadarOverviews(