feat: dyn topic rcmd

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/dynamics_select_topic/widgets/item.dart

@@ -0,0 +1,50 @@
+import 'package:PiliPlus/common/widgets/custom_icon.dart';
+import 'package:PiliPlus/models_new/dynamic/dyn_topic_top/topic_item.dart';
+import 'package:PiliPlus/utils/utils.dart';
+import 'package:flutter/material.dart';
+
+class DynTopicItem extends StatelessWidget {
+  const DynTopicItem({
+    super.key,
+    required this.item,
+    required this.onTap,
+  });
+
+  final TopicItem item;
+  final ValueChanged<TopicItem> onTap;
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      dense: true,
+      onTap: () => onTap(item),
+      title: Text.rich(
+        TextSpan(
+          children: [
+            const WidgetSpan(
+              alignment: PlaceholderAlignment.middle,
+              child: Padding(
+                padding: EdgeInsets.only(right: 5),
+                child: Icon(
+                  CustomIcon.topic_tag,
+                  size: 18,
+                ),
+              ),
+            ),
+            TextSpan(
+              text: item.name,
+              style: const TextStyle(fontSize: 14),
+            ),
+          ],
+        ),
+      ),
+      subtitle: Padding(
+        padding: const EdgeInsets.only(left: 23),
+        child: Text(
+          '${Utils.numFormat(item.view)}浏览 · ${Utils.numFormat(item.discuss)}讨论',
+          style: TextStyle(color: Theme.of(context).colorScheme.outline),
+        ),
+      ),
+    );
+  }
+}