fix(mobile): fix uncaught error in getting file cause hashing procses to be aborted entirely

[alextran1502]

On iOS, some local files might be from the Shared Albums of iOS, which is known to be visible from the phone but actually they could be moved or removed, thus an error is throw when we are trying to read the file content.

Relevant log

2024-09-15 13:35:55.672267 | SEVERE   | ImmichErrorLogger    | PlatformDispatcher - Catch all | PlatformException(Error Domain=PHPhotosErrorDomain Code=-1 "(null)", null, null, null) |
#0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:648)
#1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:334)
<asynchronous suspension>
#2      AssetEntity._getFile (package:photo_manager/src/types/entity.dart:735)
<asynchronous suspension>
#3      HashService._hashAssets (package:immich_mobile/services/hash.service.dart:57)
<asynchronous suspension>
#4      SyncService._addAlbumFromDevice (package:immich_mobile/services/sync.service.dart:687)
<asynchronous suspension>
#5      diffSortedLists (package:immich_mobile/utils/diff.dart:30)
<asynchronous suspension>
#6      SyncService._syncLocalAlbumAssetsToDb (package:immich_mobile/services/sync.service.dart:504)
<asynchronous suspension>
#7      AlbumService.refreshDeviceAlbums (package:immich_mobile/services/album.service.dart:121)
<asynchronous suspension>
#8      Future.wait.<anonymous closure> (dart:async/future.dart:534)
<asynchronous suspension>