increase min sdk and apply new formatter

app/lib/utils/langchain_utils.dart

@@ -2,10 +2,7 @@ import 'dart:typed_data';
 
 import 'package:langchain/langchain.dart';
 
-String combineDocuments(
-  List<Document> documents, {
-  String separator = '\n\n',
-}) {
+String combineDocuments(List<Document> documents, {String separator = '\n\n'}) {
   return documents.map((d) => d.pageContent).join(separator);
 }
 

app/lib/utils/lru_cache.dart

@@ -10,10 +10,10 @@ class LRUCache<K, V> {
     int Function(K)? hashCode,
     bool Function(dynamic)? isValidKey,
   }) : _cache = LinkedHashMap<K, V>(
-          equals: equals,
-          hashCode: hashCode,
-          isValidKey: isValidKey,
-        );
+         equals: equals,
+         hashCode: hashCode,
+         isValidKey: isValidKey,
+       );
 
   void resize(int capacity) {
     if (_capacity > capacity) {

app/lib/utils/ui_helper.dart

@@ -5,9 +5,7 @@ void showErrorMessage(BuildContext context, String message) {
   final snackBar = SnackBar(
     content: Text(
       message,
-      style: TextStyle(
-        color: Theme.of(context).colorScheme.error,
-      ),
+      style: TextStyle(color: Theme.of(context).colorScheme.error),
     ),
     backgroundColor: Theme.of(context).colorScheme.onError,
   );
@@ -19,15 +17,9 @@ Future<void> launchUrlFeedback(
   Uri url, {
   LaunchMode mode = LaunchMode.externalApplication,
 }) async {
-  if (!await launchUrl(
-    url,
-    mode: mode,
-  )) {
+  if (!await launchUrl(url, mode: mode)) {
     if (context.mounted) {
-      showErrorMessage(
-        context,
-        'Could not launch URL ($url)',
-      );
+      showErrorMessage(context, 'Could not launch URL ($url)');
     }
   }
 }