feat(mobile): show local assets (#905)

* introduce Asset as composition of AssetResponseDTO and AssetEntity

* filter out duplicate assets (that are both local and remote, take only remote for now)

* only allow remote images to be added to albums

* introduce ImmichImage to render Asset using local or remote data

* optimized deletion of local assets

* local video file playback

* allow multiple methods to wait on background service finished

* skip local assets when adding to album from home screen

* fix and optimize delete

* show gray box placeholder for local assets

* add comments

* fix bug: duplicate assets in state after onNewAssetUploaded

mobile/lib/modules/album/services/album.service.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 
 import 'package:flutter/foundation.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/shared/models/asset.dart';
 import 'package:immich_mobile/shared/providers/api.provider.dart';
 import 'package:immich_mobile/shared/services/api.service.dart';
 import 'package:openapi/api.dart';
@@ -29,7 +30,7 @@ class AlbumService {
 
   Future<AlbumResponseDto?> createAlbum(
     String albumName,
-    Set<AssetResponseDto> assets,
+    Iterable<Asset> assets,
     List<String> sharedUserIds,
   ) async {
     try {
@@ -65,7 +66,7 @@ class AlbumService {
   }
 
   Future<AlbumResponseDto?> createAlbumWithGeneratedName(
-    Set<AssetResponseDto> assets,
+    Iterable<Asset> assets,
   ) async {
     return createAlbum(
         _getNextAlbumName(await getAlbums(isShared: false)), assets, []);
@@ -81,7 +82,7 @@ class AlbumService {
   }
 
   Future<AddAssetsResponseDto?> addAdditionalAssetToAlbum(
-    Set<AssetResponseDto> assets,
+    Iterable<Asset> assets,
     String albumId,
   ) async {
     try {