fix: Update locked folder text and improve translations (#18622)

* Update locked folder text and remove unused translations

* uppercase Locked folder in Menu

* convert some translates to icu and improve

* add iOS debug info translations for background processes

* fix lint

---------

Co-authored-by: dvbthien <dvbthien@gmail.com>

mobile/lib/widgets/backup/ios_debug_info_tile.dart

@@ -1,8 +1,9 @@
+import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/extensions/build_context_extensions.dart';
 import 'package:immich_mobile/providers/backup/ios_background_settings.provider.dart';
-import 'package:intl/intl.dart';
+import 'package:immich_mobile/utils/translation.dart';
 
 /// This is a simple debug widget which should be removed later on when we are
 /// more confident about background sync
@@ -19,26 +20,35 @@ class IosDebugInfoTile extends HookConsumerWidget {
     final processing = settings.timeOfLastProcessing;
     final processes = settings.numberOfBackgroundTasksQueued;
 
-    final processOrProcesses = processes == 1 ? 'process' : 'processes';
-    final numberOrZero = processes == 0 ? 'No' : processes.toString();
-    final title = '$numberOrZero background $processOrProcesses queued';
+    final String title;
+    if (processes == 0) {
+      title = 'ios_debug_info_no_processes_queued'.tr();
+    } else {
+      title = t('ios_debug_info_processes_queued', {'count': processes});
+    }
 
     final df = DateFormat.yMd().add_jm();
     final String subtitle;
     if (fetch == null && processing == null) {
-      subtitle = 'No background sync job has run yet';
+      subtitle = 'ios_debug_info_no_sync_yet'.tr();
     } else if (fetch != null && processing == null) {
-      subtitle = 'Fetch ran ${df.format(fetch)}';
+      subtitle =
+          t('ios_debug_info_fetch_ran_at', {'dateTime': df.format(fetch)});
     } else if (processing != null && fetch == null) {
-      subtitle = 'Processing ran ${df.format(processing)}';
+      subtitle = t(
+        'ios_debug_info_processing_ran_at',
+        {'dateTime': df.format(processing)},
+      );
     } else {
       final fetchOrProcessing =
           fetch!.isAfter(processing!) ? fetch : processing;
-      subtitle = 'Last sync ${df.format(fetchOrProcessing)}';
+      subtitle = t(
+        'ios_debug_info_last_sync_at',
+        {'dateTime': df.format(fetchOrProcessing)},
+      );
     }
 
     return ListTile(
-      key: ValueKey(title),
       title: Text(
         title,
         style: TextStyle(