fixed issues in create space and duplicate

lib/pages/spaces_management/helper/space_helper.dart

@@ -0,0 +1,43 @@
+import 'package:syncrow_web/pages/spaces_management/all_spaces/model/community_model.dart';
+import 'package:syncrow_web/pages/spaces_management/all_spaces/model/space_model.dart';
+
+class SpaceHelper {
+  static SpaceModel? findSpaceByUuid(
+      String? uuid, List<CommunityModel> communities) {
+    for (var community in communities) {
+      for (var space in community.spaces) {
+        if (space.uuid == uuid) return space;
+      }
+    }
+    return null;
+  }
+
+  static SpaceModel? findSpaceByInternalId(
+      String? internalId, List<SpaceModel> spaces) {
+    if (internalId != null) {
+      for (var space in spaces) {
+        if (space.internalId == internalId) return space;
+      }
+    }
+
+    return null;
+  }
+
+  static String generateUniqueSpaceName(
+      String originalName, List<SpaceModel> spaces) {
+    final baseName = originalName.replaceAll(RegExp(r'\(\d+\)$'), '').trim();
+    int maxNumber = 0;
+
+    for (var space in spaces) {
+      final match = RegExp(r'^(.*?)\((\d+)\)$').firstMatch(space.name);
+      if (match != null && match.group(1)?.trim() == baseName) {
+        int existingNumber = int.parse(match.group(2)!);
+        if (existingNumber > maxNumber) {
+          maxNumber = existingNumber;
+        }
+      }
+    }
+
+    return "$baseName(${maxNumber + 1})";
+  }
+}