Extracted SidebarCommunitiesList into a reusable widget.

lib/common/widgets/sidebar_communities_list.dart

@@ -0,0 +1,55 @@
+import 'package:flutter/material.dart';
+import 'package:syncrow_web/pages/spaces_management/all_spaces/model/community_model.dart';
+import 'package:syncrow_web/utils/extension/build_context_x.dart';
+
+class SidebarCommunitiesList extends StatefulWidget {
+  const SidebarCommunitiesList({
+    required this.communities,
+    required this.itemBuilder,
+    super.key,
+  });
+
+  final List<CommunityModel> communities;
+  final Widget Function(BuildContext context, int index) itemBuilder;
+
+  @override
+  State<SidebarCommunitiesList> createState() => _SidebarCommunitiesListState();
+}
+
+class _SidebarCommunitiesListState extends State<SidebarCommunitiesList> {
+  late final ScrollController _scrollController;
+
+  @override
+  void initState() {
+    _scrollController = ScrollController();
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    _scrollController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return SingleChildScrollView(
+      scrollDirection: Axis.horizontal,
+      child: SizedBox(
+        width: context.screenWidth * 0.5,
+        child: Scrollbar(
+          scrollbarOrientation: ScrollbarOrientation.left,
+          thumbVisibility: true,
+          controller: _scrollController,
+          child: ListView.builder(
+            padding: const EdgeInsetsDirectional.only(start: 16),
+            shrinkWrap: true,
+            itemCount: widget.communities.length,
+            controller: _scrollController,
+            itemBuilder: widget.itemBuilder,
+          ),
+        ),
+      ),
+    );
+  }
+}