feat: Add Slack Adapter

[jonathanbecerra]

Added Slack Adapter

• Slack Authentication: Integrated a Slack adapter using https://api.slack.com/authentication/sign-in-with-slack as the source for the required endpoints.

• Scope Type: Introduced a scoped type, Scope, using a union for type safety.

  • I would like to suggest a top-level union of common scopes and append provider-specific scopes using utilities like Exclude or Extract to limit scopes as necessary. e.g:

  // scopes.ts
  type Scope = "openid" | "email"
  
  // slack.ts
  // Use the top level union plus the provider's set of scopes.
  type SlackScope = Scope | "profile"
  // Alternatively, to exclude "email" from Slack scopes:
  type SlackScope = Exclude<Scope, "email"> | "profile"
  // Another option is to extract only specific members from the top-level union:
  type SlackScope = Extract<Scope, "openid" | "email">;

UI Updates

• Slack Icon: Added ICON_SLACK to the ui/icon.tsx file in black and white, aligning with the style of other icons. While this addition follows existing conventions, we can revise or remove it if not necessary.

[changeset-bot]

🦋 Changeset detected

Latest commit: 6f43b5d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@openauthjs/openauth	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR