neon: make use of collection in find extensions

packages/neon/neon/lib/neon.dart

@@ -6,6 +6,7 @@ import 'dart:io';
 import 'dart:ui';
 
 import 'package:bitmap/bitmap.dart';
+import 'package:collection/collection.dart';
 import 'package:crypto/crypto.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:filesize/filesize.dart';

packages/neon/neon/lib/src/models/account.dart

@@ -1,5 +1,6 @@
 import 'dart:convert';
 
+import 'package:collection/collection.dart';
 import 'package:crypto/crypto.dart';
 import 'package:flutter/foundation.dart';
 import 'package:json_annotation/json_annotation.dart';
@@ -104,13 +105,5 @@ extension NextcloudClientHelpers on NextcloudClient {
 }
 
 extension AccountFind on Iterable<Account> {
-  Account? find(final String accountID) {
-    for (final account in this) {
-      if (account.id == accountID) {
-        return account;
-      }
-    }
-
-    return null;
-  }
+  Account? find(final String accountID) => firstWhereOrNull((final account) => account.id == accountID);
 }

packages/neon/neon/lib/src/utils/app_implementation.dart

@@ -74,13 +74,5 @@ abstract class AppImplementation<T extends Bloc, R extends NextcloudAppSpecificO
 }
 
 extension AppImplementationFind on Iterable<AppImplementation> {
-  AppImplementation? find(final String appID) {
-    for (final app in this) {
-      if (app.id == appID) {
-        return app;
-      }
-    }
-
-    return null;
-  }
+  AppImplementation? find(final String appID) => firstWhereOrNull((final app) => app.id == appID);
 }