[4.x] Feat: Support new Slack provider

[joelbutcher]

Summary

This pull request adds support for the new Slack provider introduced in laravel/socialite#644

Explanation

• Vue SVG added
• Blade SVG added
• Order providers alphabetically in each stack
• Added OAuth2 Refresh Resolver

Checklist

• I've read this template
• I've checked reviewed this PR myself, ensuring consistency and quality with the rest of the project
• I've given a good reason as to why this PR exposes new / removes existing user data

[what-the-diff]

PR Summary

• Added Support for Livewire Package
  The PR includes added support for the livewire/livewire package in our project definition file.

• Updated ConnectedAccountsForm.php File
  The ConnectedAccountsForm.php file has been tweaked to replace one type of response with another, improving the way the system handles redirections.

• New Methods for Slack Support
  Several new methods that enable support for the Slack platform have been incorporated throughout the application in files such as Providers.php, Socialstream.php, and SocialstreamServiceProvider.php. This will allow for more robust integrations with Slack.

• Added SlackOauth2RefreshResolver.php File
  A new file named SlackOauth2RefreshResolver.php has been added to the project. This is an essential part for Slack integration as it handles refreshing tokens for ongoing Slack sessions.

• Updated User Interface Files For Slack Support
  The user interface files ConnectedAccount.vue and Socialstream.vue have been updated with new markup to support integration with the Slack platform.

• Introduced SlackIcon.vue File
  A new file named SlackIcon.vue has been added to the SocialstreamIcons directory. This will display Slack’s icon in the user interface wherever needed.

• Added Slack Provider's Markup to Blade Files
  New blade files have been added to the project housing the visual elements required for the Slack integration across views/components/socialstream-icons and views/components directories.