[Bug]: Share plus dialog is not being closed.

### Platform

iPad 15.6.1

### Plugin

share_plus

### Version

4.1.0

### Flutter SDK

2.10.1

### Steps to reproduce

Hi, The share plus dialog is not being closed in case one. Suppose I opened the share plus dialog and sent a push notification on my mobile, after clicking on the notification share plus dialog should dismiss. it is not being closed.

### Code Sample

_No response_

### Logs

```shell
there is no such exceptions related share plus.
```

### Flutter Doctor

```shell
[✓] Flutter (Channel stable, 2.10.1, on macOS 12.5.1 21G83 darwin-arm, locale en-IN)
• Flutter version 2.10.1 at /Users/mayank/Downloads/DownloadedSoftware/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision db747aa133 (7 months ago), 2022-02-09 13:57:35 -0600
• Engine revision ab46186b24
• Dart version 2.16.1
• DevTools version 2.9.2

[✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
• Android SDK at /Users/mayank/Library/Android/sdk
• Platform android-31, build-tools 31.0.0
• Java binary at: /Users/mayank/Downloads/Android Studio.app/Contents/jre/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 13.4.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• CocoaPods version 1.11.2

[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2020.3)
• Android Studio at /Users/mayank/Downloads/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)

[✓] IntelliJ IDEA Community Edition (version 2021.3)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.67.0)
• VS Code at /Users/mayank/Downloads/Visual Studio Code.app/Contents
• Flutter extension can be installed from:
🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (2 available)
• iPad (mobile) • 00008020-001859923AE1002E • ios • iOS 15.6.1 19G82
• Chrome (web) • chrome • web-javascript • Google Chrome 105.0.5195.102

[✓] HTTP Host Availability
• All required HTTP hosts are available

• No issues found!
```