dev(mobile): Fix freeze bug on app start (#1732)

* Group by date objects instead of strings

* Change OpenAPI code generation to wrap json decoding in
Change OpenAPI code generation to wrap decodeJson in compute

* Remove orig file

* Fix linter error

* Change drag handle date format

* Order timeline explictly from new to old

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

server/bin/generate-open-api.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 function mobile {
   rm -rf ../mobile/openapi
@@ -7,6 +7,10 @@ function mobile {
   patch -u native_class.mustache <native_class.mustache.patch
   cd ../../../..
   npx openapi-generator-cli generate -g dart -i ./immich-openapi-specs.json -o ../mobile/openapi -t ./openapi-generator/templates
+
+  # Post generate patches
+  patch --no-backup-if-mismatch -u ../mobile/openapi/lib/api_client.dart <./openapi-generator/patch/api_client.dart.patch
+  patch --no-backup-if-mismatch -u ../mobile/openapi/lib/api.dart <./openapi-generator/patch/api.dart.patch
 }
 
 function web {

server/openapi-generator/patch/api.dart.patch

@@ -0,0 +1,8 @@
+@@ -14,6 +14,7 @@ import 'dart:async';
+ import 'dart:convert';
+ import 'dart:io';
+
++import 'package:flutter/foundation.dart';
+ import 'package:http/http.dart';
+ import 'package:intl/intl.dart';
+ import 'package:meta/meta.dart';

server/openapi-generator/patch/api_client.dart.patch

@@ -0,0 +1,21 @@
+@@ -144,19 +144,19 @@ class ApiClient {
+     );
+   }
+
+-  Future<dynamic> deserializeAsync(String json, String targetType, {bool growable = false,}) async =>
++  Future<dynamic> deserializeAsync(String json, String targetType, {bool growable = false,}) =>
+     // ignore: deprecated_member_use_from_same_package
+     deserialize(json, targetType, growable: growable);
+
+   @Deprecated('Scheduled for removal in OpenAPI Generator 6.x. Use deserializeAsync() instead.')
+-  dynamic deserialize(String json, String targetType, {bool growable = false,}) {
++  Future<dynamic> deserialize(String json, String targetType, {bool growable = false,}) async {
+     // Remove all spaces. Necessary for regular expressions as well.
+     targetType = targetType.replaceAll(' ', ''); // ignore: parameter_assignments
+
+     // If the expected target type is String, nothing to do...
+     return targetType == 'String'
+       ? json
+-      : _deserialize(jsonDecode(json), targetType, growable: growable);
++      : _deserialize(await compute((String j) => jsonDecode(j), json), targetType, growable: growable);
+   }