♻️ Refactor thought widgets

lib/widgets/thought/token_info.dart

@@ -0,0 +1,49 @@
+import 'package:flutter/material.dart';
+import 'package:gap/gap.dart';
+import 'package:material_symbols_icons/material_symbols_icons.dart';
+import 'package:island/models/thought.dart';
+
+class TokenInfo extends StatelessWidget {
+  const TokenInfo({super.key, required this.thought});
+
+  final SnThinkingThought thought;
+
+  @override
+  Widget build(BuildContext context) {
+    if (thought.tokenCount == null && thought.modelName == null) {
+      return const SizedBox.shrink();
+    }
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        const Gap(8),
+        Row(
+          children: [
+            if (thought.modelName != null) ...[
+              const Icon(Symbols.neurology, size: 16),
+              const Gap(4),
+              Text(
+                '${thought.modelName}',
+                style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                  color: Theme.of(context).colorScheme.onSurfaceVariant,
+                ),
+              ),
+              const Gap(16),
+            ],
+            if (thought.tokenCount != null) ...[
+              const Icon(Symbols.token, size: 16),
+              const Gap(4),
+              Text(
+                '${thought.tokenCount} tokens',
+                style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                  color: Theme.of(context).colorScheme.onSurfaceVariant,
+                ),
+              ),
+            ],
+          ],
+        ),
+      ],
+    );
+  }
+}