Show "share feedback" option in settings

[SankethBK]

An option to share feedback from within the app.

Add "Share Feedback" button in settings

On clicking it, it should launch email app with subject and sender preconfigured as
sender: "diaryvault.app@gmail.com"
Subject: "Feedback for diaryvault"

This can be url_launcher package

  final String emailAddress = 'diaryvault.app@gmail.com';
  final String subject = 'Feedback for DiaryVault';

  void _launchEmailApp() async {
    final Uri emailLaunchUri = Uri(
      scheme: 'mailto',
      path: 'diaryvault.app@gmail.com',
      queryParameters: {'subject': 'Feedback for DiaryVault'},
    );```

[SankethBK]

Hey @micedreams I changed the description to make it work via email instead of discord bot, as writing discord bot might be difficult. if you have already started working on discord bot we can use same instead of email.

[micedreams]

Hey @micedreams I changed the description to make it work via email instead of discord bot, as writing discord bot might be difficult. if you have already started working on discord bot we can use same instead of email.

I have not started working on it yet... sending it as an email sounds Good!!