update dependencies and add wasm support

lib/src/emoji_picker.dart

@@ -1,10 +1,9 @@
-import 'dart:io';
-
 import 'package:emoji_picker_flutter/emoji_picker_flutter.dart';
 import 'package:emoji_picker_flutter/locales/default_emoji_set_locale.dart';
 import 'package:emoji_picker_flutter/src/emoji_picker_internal_utils.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:universal_io/io.dart';
 
 /// All the possible categories that [Emoji] can be put into
 ///

lib/src/emoji_picker_internal_utils.dart

@@ -1,11 +1,11 @@
 import 'dart:convert';
-import 'dart:io';
 import 'dart:math';
 
 import 'package:emoji_picker_flutter/emoji_picker_flutter.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:universal_io/io.dart';
 
 /// Initial value for RecentEmoji
 const initVal = 1;

pubspec.lock

@@ -353,10 +353,10 @@ packages:
     dependency: "direct main"
     description:
       name: shared_preferences
-      sha256: c272f9cabca5a81adc9b0894381e9c1def363e980f960fa903c604c471b22f68
+      sha256: "95f9997ca1fb9799d494d0cb2a780fd7be075818d59f00c43832ed112b158a82"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.1"
+    version: "2.3.3"
   shared_preferences_android:
     dependency: transitive
     description:
@@ -530,6 +530,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.2"
+  universal_io:
+    dependency: "direct main"
+    description:
+      name: universal_io
+      sha256: "1722b2dcc462b4b2f3ee7d188dad008b6eb4c40bbd03a3de451d82c78bba9aad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
   vector_math:
     dependency: transitive
     description:
@@ -558,10 +566,10 @@ packages:
     dependency: "direct main"
     description:
       name: web
-      sha256: d43c1d6b787bf0afad444700ae7f4db8827f701bc61c255ac8d328c6f4d52062
+      sha256: cd3543bd5798f6ad290ea73d210f423502e71900302dde696f8bff84bf89a1cb
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.0"
+    version: "1.1.0"
   web_socket:
     dependency: transitive
     description:

pubspec.yaml

@@ -13,8 +13,9 @@ dependencies:
   flutter_web_plugins:
     sdk: flutter
   plugin_platform_interface: ^2.1.8
-  shared_preferences: ^2.3.1
-  web: ^1.0.0
+  shared_preferences: ^2.3.3
+  web: ^1.1.0
+  universal_io: ^2.2.2
 
 dev_dependencies:
   flutter_test: