Add Long-Press Copy Function for Song Title and Artist Name

**Description**:
I would like to request a feature in AstroDX that allows users to copy the song title or artist name by long pressing on them. Additionally, upon the first launch of the app, a notification should appear to inform users of this feature. This would make it easier for users to search for gameplay videos on other platforms or listen to the original track on music apps.

**Motivation**:
Currently, users need to manually copy the song title or artist name, which can be inconvenient. By adding a long-press-to-copy function and notifying users during their first launch, the app will become more intuitive and user-friendly.

**Expected Outcome**:
- When users long press on the song title or artist name, the relevant content is automatically copied to the clipboard.
- Upon the first launch, a notification will inform users about this feature.
- This will help users efficiently find related content on external platforms.

Look for the UI components displaying song title and artist, likely in XAML files. Implement long-press gesture recognizers to copy text to clipboard. Add a one-time notification system for first launch, possibly using application settings or a tutorial overlay. Test the copy functionality and the notification trigger.

Written by the indexing model from the issue text.