118 - Implement shared album feature (#124)

* New features 
  - Share album. Users can now create albums to share with existing people on the network.
  - Owner can delete the album.
  - Owner can invite the additional users to the album.
  - Shared users and the owner can add additional assets to the album.
* In the asset viewer, the user can swipe up to see detailed information and swip down to dismiss.
* Several UI enhancements.

mobile/lib/shared/services/network.service.dart

@@ -76,9 +76,10 @@ class NetworkService {
       return res;
     } on DioError catch (e) {
       debugPrint("DioError: ${e.response}");
-      return false;
+      return null;
     } catch (e) {
       debugPrint("ERROR BackupService: $e");
+      return null;
     }
   }
 

mobile/lib/shared/services/user.service.dart

@@ -0,0 +1,24 @@
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
+import 'package:immich_mobile/shared/models/user_info.model.dart';
+import 'package:immich_mobile/shared/services/network.service.dart';
+
+class UserService {
+  final NetworkService _networkService = NetworkService();
+
+  Future<List<UserInfo>> getAllUsersInfo() async {
+    try {
+      Response res = await _networkService.getRequest(url: 'user');
+      List<dynamic> decodedData = jsonDecode(res.toString());
+      List<UserInfo> result = List.from(decodedData.map((e) => UserInfo.fromMap(e)));
+
+      return result;
+    } catch (e) {
+      debugPrint("Error getAllUsersInfo  ${e.toString()}");
+    }
+
+    return [];
+  }
+}