Add Custom Preview Component for Slack Provider

[nevo-david]

Overview

The Slack provider currently uses the default GeneralPreviewComponent instead of a platform-specific preview that matches Slack's UI/UX.

Current State

• Provider file: apps/frontend/src/components/launches/providers/slack/slack.provider.tsx
• Using: withProvider(SlackSettings, undefined, ...) - no custom preview component
• Falls back to: GeneralPreviewComponent

Needed Implementation

Create a SlackPreview component that:

• Matches Slack's message design (clean workspace layout)
• Shows proper channel context with # prefix
• Displays message with proper Slack formatting (bold, code, mentions)
• Shows Slack-specific elements like reactions, thread replies
• Includes workspace and user context
• Handles Slack markdown and mentions properly
• Shows timestamp and workspace styling

Reference

See existing implementations:

• apps/frontend/src/components/launches/providers/medium/medium.provider.tsx (MediumPreview)
• apps/frontend/src/components/launches/providers/devto/devto.provider.tsx (DevtoPreview)

Technical Details

• Component should be added as second parameter in withProvider(SlackSettings, SlackPreview, ...)
• Should implement FC<{ maximumCharacters?: number }> interface
• Use useIntegration() hook to access post content and settings
• Access Slack-specific settings like channel selection

Priority

Medium - Slack is a major workplace communication platform

[github-actions]

This issue is stale because it has been open for 90 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 7 days since being marked as stale.