Show curated asset's location in search page (#55)

* Added Tab Navigation Observer to trigger event handling for tab page navigation
* Added query to get access with distinct location
* Showed places in search page as a horizontal list
* Showed location search result on tapped

mobile/lib/modules/search/models/search_page_state.model.dart

@@ -0,0 +1,78 @@
+import 'dart:convert';
+
+import 'package:collection/collection.dart';
+
+class SearchPageState {
+  final String searchTerm;
+  final bool isSearchEnabled;
+  final List<String> searchSuggestion;
+  final List<String> userSuggestedSearchTerms;
+
+  SearchPageState({
+    required this.searchTerm,
+    required this.isSearchEnabled,
+    required this.searchSuggestion,
+    required this.userSuggestedSearchTerms,
+  });
+
+  SearchPageState copyWith({
+    String? searchTerm,
+    bool? isSearchEnabled,
+    List<String>? searchSuggestion,
+    List<String>? userSuggestedSearchTerms,
+  }) {
+    return SearchPageState(
+      searchTerm: searchTerm ?? this.searchTerm,
+      isSearchEnabled: isSearchEnabled ?? this.isSearchEnabled,
+      searchSuggestion: searchSuggestion ?? this.searchSuggestion,
+      userSuggestedSearchTerms: userSuggestedSearchTerms ?? this.userSuggestedSearchTerms,
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return {
+      'searchTerm': searchTerm,
+      'isSearchEnabled': isSearchEnabled,
+      'searchSuggestion': searchSuggestion,
+      'userSuggestedSearchTerms': userSuggestedSearchTerms,
+    };
+  }
+
+  factory SearchPageState.fromMap(Map<String, dynamic> map) {
+    return SearchPageState(
+      searchTerm: map['searchTerm'] ?? '',
+      isSearchEnabled: map['isSearchEnabled'] ?? false,
+      searchSuggestion: List<String>.from(map['searchSuggestion']),
+      userSuggestedSearchTerms: List<String>.from(map['userSuggestedSearchTerms']),
+    );
+  }
+
+  String toJson() => json.encode(toMap());
+
+  factory SearchPageState.fromJson(String source) => SearchPageState.fromMap(json.decode(source));
+
+  @override
+  String toString() {
+    return 'SearchPageState(searchTerm: $searchTerm, isSearchEnabled: $isSearchEnabled, searchSuggestion: $searchSuggestion, userSuggestedSearchTerms: $userSuggestedSearchTerms)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+    final listEquals = const DeepCollectionEquality().equals;
+
+    return other is SearchPageState &&
+        other.searchTerm == searchTerm &&
+        other.isSearchEnabled == isSearchEnabled &&
+        listEquals(other.searchSuggestion, searchSuggestion) &&
+        listEquals(other.userSuggestedSearchTerms, userSuggestedSearchTerms);
+  }
+
+  @override
+  int get hashCode {
+    return searchTerm.hashCode ^
+        isSearchEnabled.hashCode ^
+        searchSuggestion.hashCode ^
+        userSuggestedSearchTerms.hashCode;
+  }
+}